Journal of
Toxicology and Environmental Health Sciences

  • Abbreviation: J. Toxicol. Environ. Health Sci.
  • Language: English
  • ISSN: 2006-9820
  • DOI: 10.5897/JTEHS
  • Start Year: 2009
  • Published Articles: 206

JTEHS Articles

Immunostimulatory potential of Aristolochia longa L. induced toxicity on liver, intestine and kidney in mice

August 2011

Aristolochia longa L. (AL) (Aristolochiaceae) is used by Moroccan patients suffering from cancer during the course of their specific treatment. This practice has remained till date without scientific validation. To validate evidence for or against its continued use as antitumor product and afford data for further studies of this plant, the present investigation was carried out to evaluate the safety of an aqueous...

Author(s): Ghita BENZAKOUR, Nouhad BENKIRANE, Mariam AMRANI and Mounia OUDGHIRI,

Fast monitoring of water distribution system with portable enrichment unit – Measurement of volatile compounds of coliforms and Salmonella sp. in tap water

August 2011

The aim of the study was to clarify if microbe enrichment cultures and monitoring of volatiles released by them could speed up the detection of indicator bacteria in water samples. The combination of Portable Microbe Enrichment Unit (PMEU) cultivation and ChemPro100i® chemical detector were used to detect the hygiene indicating bacteria. When the water distribution network of Kuopio city was studied in early...

Author(s): Elias Hakalehto, Anneli Heitto, Lauri Heitto, Tarmo Humppi , Kari Rissanen, Ari Jääskeläinen, Heikki Paakkanen and Osmo Hänninen

Survey on the usage of plastic bags, their disposal and adverse impacts on environment: A case study in Jimma City, Southwestern Ethiopia

August 2011

Plastic bag wastes pose serious environmental pollutions and health problems in humans and animals. The situation is worsened in economically disadvantaged countries like Ethiopia. The objective of this survey was to assess usage of plastic bags and their environmental impacts in Jimma City of Ethiopia. A semi-structured questionnaire was used to collect data from 230 randomly selected respondents. The results indicated...

Author(s): Legesse Adane and Diriba Muleta

Cadmium toxicity exposure – Induced oxidative stress in postnatal development of Wistar rats

July 2011

Effect of cadmium on ovary increased reactive oxygen species (ROS) was studied in rat. Lipid peroxidation and the reactive oxygen species, hydrogen peroxide were increased in the ovary of Wistar rat administered with cadmium (50 and 200 ppm) in drinking water on 45 and 65 days of post natal development. Elevation of reactive oxygen species and lipid peroxidation is suggestive of tissue damage in the rat ovary due to...

Author(s): P. Dailiah Roopha, J. Savarimuthu Michael, C. Padmalatha and A. J. A. Ranjit Singh

Frequently-used agrochemicals lead to functional and morphological spermatozoa alterations in rats

July 2011

It is known that agrochemicals alter male reproductive functions. Previous studies from our lab have demonstrated the relationship between male fertility dysfunction and oxidative-nitrative stress. In this work, morphological and functional spermatozoa parameters were studied in a rat model sub-chronically (5 weeks) intoxicated with low doses (i.p. 1/250 LD50) of a mixture of dimethoate (D), glyphosate (G) and zineb...

Author(s): Hurtado de Catalfo Graciela, Astiz Mariana, Alaniz María J. T. de and Marra Carlos Alberto

Design of pilot device for municipal solid waste composting

July 2011

A mathematical model was developed for static composting process of municipal solid waste (MSW) based on the thermodynamics, kinetics of microbial growth, and hydrodynamics. A pilot scale aerobic ferment device was designed without leachate and malodor discharging. Its reasonable size, leachate collecting and recycling system, air distributing, and malodor recycling system were determined by the model and local...

Author(s): Hua Li,Xianlai Zeng, Qina Sun, Baoquan Huo, Changyong Jing, Hongfen Wang and Liyun Wang

Toxicity of Aluminum sulphate (alum) to Nubian goats

July 2011

This study was conducted to investigate the toxic effect of Aluminum sulphate (alum). Nine Nubian goat kids were divided into 3 groups, each of three goats. Group 1 animals were the undosed controls. Test groups were given alum at dose rates of 1 and 20% respectively for groups 2 and 3 for a period of 10 weeks after an adaptation period of two weeks during which the animals were X kept under ideal experimental...

Author(s): Medani A. B., El Badwi S. M. A. and Amin A. E.

Retinaranitidine as an alcohol dehydrogenase inhibitor in acute methanol toxicity in rats

June 2011

Methanol poisoning is a hazardous intoxication characterized by visual impairment and formic acidemia. The therapy for methanol poisoning is alcohol dehydrogenase (ADH) inhibitors to prevent formate accumulation.  Ranitidine has been considered to be an inhibitor of both gastric alcohol and hepatic aldehyde dehydrogenase enzymes. This study aimed at testing ranitidine as an antidote for methanol acute toxicity and...

Author(s): Amal A. El-Bakary, Sahar A. El-Dakrory, Sohayla M. Attalla, Nawal A. Hasanein and  Hala A. Malek

Micronucleus test in post metamorphic Odontophrynus cordobae and Rhinella arenarum (Amphibia: Anura) for environmental monitoring

June 2011

The genotoxic effect of cyclophosphamide and glyphosate in a commercial formulation were determined using the micronucleus test in peripheral blood erythrocytes of Odontophrynus cordobae and Rhinella arenarum, amphibians widely distributed in the Province of Córdoba, Argentina. For this, the basal frequency of the micronucleated erythrocytes (MNE) was determined by: 0.40±0.18 MNE/1000...

Author(s): Beatriz Bosch, Fernando Mañas, Nora Gorla , and Delia Aiassa

Removal of some heavy metal ions from their aqueous solutions by duckweed

June 2011

Duckweed was used to study adsorption of several metal ions (Fe2+,Cu2+, Zn2+ and Pb2+)  from wastewater under different conditions .The dried leaves of duckweed were used at different adsorbent/metal ion ratios. The experimental conditions which includes, pH, contact time, initial concentration, and loading weight on the removal process were investigated. Bach adsorption was studied in a room temperature. The...

Author(s): Jameel M. Dhabab

Influence of age on sub-chronic toxicity of the aqueous extract of the leaves of Calotropis procera on rabbits

May 2011

Calotropis procera is of the family Asclepiadaceae. The whole plant is toxic. The influence of age on sub-chronic toxicity of aqueous leaves extract was investigated in New Zealand White X local breed rabbits (Oryctolagus cuniculus) of both sexes. 200 mg/kg body weight of the extract was daily administered orally by gavages during 42 days. Vital signs, body weight change, mortality, serum biochemistry, hematology...

Author(s): Pouokam Guy B., Hatem Ahmed, Christianna Dawurung, Aliyu Atiku Shamaki David and Okewole Philipe

Evaluation of disease control and plant growth promotion potential of biocontrol agents on Pisum sativum and comparison of their activity with popular chemical control agent - carbendazim

May 2011

The superiority of chemicals over biocontrol agents in terms of effective and quick disease control was confirmed in this research but the ill effects of chemicals on human health and environment are a major set back to application of chemical pesticides in the long run. In the present work, biocontrol agents showed significant control on Fusarium wilt disease of pea but the results were not consistent...

Author(s): Poornima Sharma

Effect of sprouting on trypsin inhibitor of cowpea (Vigna unguiculata)

May 2011

With the increase role that legume protein plays in the world food supply, the nutritive quality related to trypsin inhibitor level is of major concern. The presence of trypsin inhibitors has been demonstrated in a wide variety of cereals and legumes. Rackis (1972) reported that an increase in nutritive value of soy flour paralleled the destruction of trypsin inhibitor activity. Liener (1974) suggested that trypsin...

Author(s): Malomo O., Ogunmoyela O. A. B. and Oluwajoba S. O.

Prospects and processes of human waste management in the rural areas of Nigeria

May 2011

The effect of indiscriminate defecation in the rural areas has degenerated into deadly disease such as, typhoid, tuberculosis, cholera, dysentery, diarrhoea etc. Even some of these killer diseases cause food poisoning when infecting human bodies by causing the various symptoms in some parts of the bodies, such symptoms include abdominal pains, diarrhea, gastroenteritis, prostration and vomiting. In the villages,...

Author(s): Otti V. I.

Evaluation of environmental sulphide by stabilisation of the initial product of the pentacyanonitrosylferrate(II)-sulphide reaction

April 2011

Determination of environmental sulphide requires non-interference from other anions. Cyanide stabilisation of the transient red-violet product of the pentacyanonitrosylferrate(II)-sulphide reaction enables effective quantification of a 0.3 to 5 working range and a 0.2 μg ml-1 limit of detection. Sulphide in standard 2.0 μg ml-1 solutions was detected to within 2.4% standard deviation. The technique has...

Author(s): Jolocam Mbabazi, S. Yiga and H. Ssekaalo

Development of urea formaldehyde and polyethylene waste as a copolymer binder for emulsion paint formulation

April 2011

Urea formaldehyde (UF) resin was prepared and copolymerized with polyethylene waste (PE) to form (UF/PE) composite. The resulting composite was analyzed for formaldehyde emission and other physical properties such as viscosity, gel time, density, refractive index, melting point and moisture uptake. IR analysis of UF, PE and UF/PE showed chemical interaction between UF and PE resins. The level of formaldehyde emission...

Author(s): Oemeahon S. A. and Archibong C. A.

Some priority heavy metals in children toy’s imported to Nigeria

April 2011

A total number of 51 toys manufactured from different countries were purchased and analysed to determine the level of lead, cadmium, chromium and nickel in the plastic components which was digested with concentrated HNO3 (CPSC-CH-E1002-08 method) and analyzed using atomic absorption spectrophotometer (AAS) to determine heavy metal concentration. The results obtained show that lead, cadmium, chromium and nickel were...

Author(s): Sindiku O. K. and Osibanjo O.

Ecotoxicology tests on microalgae from Córdoba, Argentina

April 2011

The eutrophication process involves important changes in the normal characteristics of water quality that may alter the balance between organisms. Microalgae particularly are very sensitive to changes. International standarized protocols were developed in order to detect water contaminants by their effects on microalgae, but it is important to evaluate contaminants over native species in our ecosystems. Using potassium...

Author(s): Zanuzzi Andrea, Pierotto Marcelo and Prosperi Carlos

A geographic information assessment of exposure to a toxic waste site and development of systemic lupus erythematosus (SLE): Findings from the buffalo lupus project

March 2011

The Buffalo Lupus Project was a community-based participatory research partnership formed to address the relationship between an identified hazardous waste site and high rates of lupus and other autoimmune diseases in the surrounding community. Most cases identified began experiencing symptoms and were diagnosed in the periods when the site was inactive. Trends suggest that the impact of the site was more likely due to...

Author(s): Edith .M. Williams, Robert Watkins, Judith Anderson and Laurene Tumiel-Berhalter

The socioeconomic impact of Arsenic poisoning in Bangladesh

March 2011

The purpose of this paper is to propose a methodology to analyze the health effects, how people cope with the socioeconomic consequences of the disease and to predict the beneficial effects of various alternative mitigation methods and recommends governmental measures for prevention of Arsenic poisoning. This research has been evaluated by the Bangladeshi Health Care system for its ability to recognize, isolate, report...

Author(s): Shakeel Ahmed Ibne Mahmood and Amal Krishna Halder

Effects of parathion on cardiac rate, ventilatory frequency and hemolymphatic gas levels in the estuarine crab Neohelice granulata (Decapoda, Brachyura)

March 2011

Adult crabs Neohelice granulata were exposed for 96 h to 0.125 mg/L of parathion under complete submersion. Crabs were then exposed to air for 6 h (emersion period) to be finally re-submerged. Cardiac rate and ventilatory frequency, as well as hemolymphatic pH, pCO2 and pO2 were measured at different times throughout the experiment. Cardiac rate was significantly lower in crabs exposed to parathion,...

Author(s): Daniel A. Medesani, Claudio O. Cervino, Martín Ansaldo and Enrique M. Rodríguez

Toxicologic characterization of a novel explosive, triaminoguanidinium-1-methyl-5-nitriminotetrazolate (TAG-MNT), in female rats and in vitro assays

March 2011

Sustainable use of training ranges requires the development of compounds that have a minimal impact on the environment when used in a weapon system.  Triaminoguanidinium-1-methyl-5-nitriminotetrazolate (TAG-MNT) is a novel, explosive, military compound of interest for application in some weapon systems.  Little is known of its toxicologic properties.  To ensure the health of potentially exposed personnel...

Author(s): Larry R. Williams, Cheng J. Cao, Emily M. Lent, Lee C. B. Crouse, Matthew A. Bazar and Mark S. Johnson

Effect of cashew wine on histology and enzyme activities of rat liver

February 2011

Saccharomyces cerevisae SIL 59703 was used to ferment cashew apple juice supplemented with 30% Sucrose in the laboratory incubated at room temperature (28 ± 2°C) for six days (aerobic) and six weeks (anaerobic) for wine production. Toxicological effect of the wine produced was based on histology and enzyme activities of rats’ liver.Forty-two rats were divided into three groups: group I...

Author(s): S. Awe and E. Tunde Olayinka

Biochemical and hormonal effects of cadmium in female guinea pigs

February 2011

Cadmium is a heavy metal toxicant, present widely in our environment and workplaces. In this study, the effects of cadmium on some biochemical and hormonal parameters of female guinea pigs were investigated. Single Intraperitoneal injection (ip) injection of 0.2 to 8.4 mg/kg of CdCl2 was given to female guinea pigs in proestrus state and observed for 24 h.  Also, single ip injection of 3 mg/kg of...

Author(s): Obianime A. W., Aprioku J. S. and Ahiwe N. J.

Mutagenecity testing of phamarceutical effluents on Allium cepa root tip meristems

February 2011

Using macro analysis of root growth parameters and micro assay of the root tip meristems through the estimation of the mitotic indices and aberrant cells of Allium cepa root meristems, a study was conducted on  three Pharmaceutical effluents discharged into agricultural lands. The chemical analysis of the effluents showed the presence of some potential mutagenic heavy metals (Pb, Cu and Zn) and Cyanide....

Author(s): Abu, Ngozi E. and Mba, K. C.

Beyond pest control: A closer look at the health implication of pesticides usage

February 2011

Author(s): A. A. Salako, , O. O. Sholeye and O. O. Dairo

Television watching and sleep promotes obesity in urban and semi-urban children in India

January 2011

Obesity is an emerging problem in urban and semi urban Indian children; it is associated with several health problems and social consequences. Poor eating habits in all the children plays major role in the development and increases in childhood overweight and obesity. The present study was aimed to evaluate the dietary and physical activity patterns as determinants of overweight in a sample of children, along with...

Author(s): Suresh V., Rupnath K., Ramesh V., Rojarani M., Ramadevi T. and K. R. S. Sambasivarao

Study on the leaching of mercury from compact fluorescent lamps using stripping voltammetry

January 2011

A study had been done on the determination of the amount of mercury present in an average CFL and the amount of mercury leached from the CFLs into the soil from where they are dumped. The extraction of the mercury from CFLs and the polluted soil was done by acid digestion. The electrochemical analytical method called Anodic stripping voltammetry (ASV) which is based on the potential dependent current...

Author(s): P. S. Harikumar, Amit Dhruvan, Sabna V. and Babitha A

Use of biochemical biomarkers in the ecological risk assessment of permetrin pesticide exposure

January 2011

Biochemical biomarkers were used in ecological risk assessment of pesticide exposure. The experiments were carried out on six weeks old poultry birds (Gallus domesticus) weighing between 400 and 600 g (12 birds) and were divided into four groups of three birds each. The poultry birds were exposed for four weeks to different concentrations (1, 5 and 10%) of a locally manufactured insect powder called...

Author(s): Ethelbert U. Ezeji, Ernest A. Anyalogbu and Christopher M. Duru

The effects of lihocin toxicity on protein metabolism of the fresh water edible fish, Channa punctatus (Bloch)

January 2011

In vivo evaluations were made to assess the pesticide activity of lihocin against fresh water fishChanna punctatus and its ultimate mode of action on fish protein metabolism. Biochemical studies show that after exposing the fish to sub lethal dose of lihocin, total protein levels significantly decreased while FAA, glutamine, alkaline phosphatases, acid phosphatases, AlAT, AAT, GDH, AMP deaminase and adenosine...

Author(s): Abdul Naveed, C. Janaiah and P. Venkateshwarlu

High urinary iodine content (UIC) among primary school children in Ibadan, Nigeria, a public health concern

December 2010

Urinary iodine excretion is a good marker for the dietary intake of iodine, and is the index for evaluating the degree of iodine deficiency, correction and toxicity. A study, investigating the random urinary iodine level in school children in Ibadan, a South-Western cosmopolitan city of Nigeria, has not been evaluated, thus the emanation of this study. Random urinary iodine was measured in 300 primary school children in...

Author(s): Onyeaghala A. A., Anetor J. I., Nurudeen A. and Oyewole O. E.

Experimental model to evaluate the effect of aqueous extract of ‘Buzhong Yi Qi Wan’ on the survival of Escherichia coli submitted to treatment with stannous ion

December 2010

Buzhong Yi Qi Wan’ is a combination of medicinal herbs widely used in Traditional Chinese Medicine to treat digestive and circulation disorders. It is an anti-inflammatory biocomplex with energizing and anti-cancer properties, and it should have an effect in natural killer cell (NK) activity, improving immunological capacity in elderly people. Substances present in the ‘Buzhong Yi Qi Wan’ extract could...

Author(s): Tania Santos Giani,, Cleide Aparecida Ferreira de Rezende and Estélio Henrique Martin Dantas

Analyses of the effect of para- phenylenediamine Takaout roumia on the osmotic stability of human erythrocytes

December 2010

This work analysed the effects of para- phenylenediamine (p-PD), a component in permanent hair dyes products on the osmotic stability of human’s erythrocytes. Hemolysis was monitored by measurement of absorbance at 412 nm following addition of erythrocytes to NaCl solutions of varying concentration. Absorbance was fitted to sigmoid regression curves given by Boltzmann equation, and hemolysis...

Author(s): Habti Norddine, Benzakour Ghita, Zaid Younes, Naya Abdallah, Nadia Nourichafi, Hassan Mifdal, Motaouakkil Said and Oudghiri Mounia

Influence of chemical speciation and divalent cations on cadmium toxicity during microbial biodegradation of crude oil

November 2010

Microbial metal toxicity had been attributed to metal concentration and bioavailability, the later factor being dependent on speciation; the distribution of metals into various physicochemical forms. This research was aimed at establishing a correlation between the nature of predominating ligands in natural environments which can associate with metals and influence toxicities to biodegrading microbes. Cadmium, a known...

Author(s): M. G. Ekpenyong and S. P. Antai

Effect of amoxycillin/clavulanic acid (Augmentin 625®) on antioxidant indices and markers of renal and hepatic damage in rats

November 2010

Amoxycillin/clavulanic acid (Augmentin 625®) is an antibiotic which is being advocated by WHO as a drug for treatment of infection. Its efficacy and potential to inhibit microorganisms had led to their increased use. There is the possibility that the drug may have potential toxic effects on humans following consumption. The present investigation was therefore undertaken to study the status of antioxidant defense...

Author(s): E. Tunde Olayinka and I. L. Olukowade

Studies on biochemical changes in the tissues of Labeo rohita and Cirrhinus mrigala exposed to fenvalerate technical grade

October 2010

Fenvalerate is one among the synthetic pyrethroids, preferred for its low persistence, low toxicity to birds and mammals, broad spectrum of action on plant pests and metabolites/degradation products non toxic to man and other vertebrates. However, it is highly toxic to fish causing severe alterations in the metabolism of the organism, sometimes proving to be fatal if the concentrations are high. The present study...

Author(s): T. Anita Susan, K. Sobha, K. Veeraiah and K. S. Tilak

Ecological distribution of Macrozoobenthos in Hokera wetland of J&K, India

October 2010

In the recent years, several scholars working on Himalayan "Ecocrisis" reported that the wetlands in the region are suffering from severe biotic stress and that the damage ensuing is getting to the point of becoming irreversible. The Wetlands are intimately linked with the agro-ecosystems in the mountainous area of the Himalaya and the depletion has definite and obvious impacts on the overall socio-economic...

Author(s): Idrees Yousuf Dar, G. A. Bhat and Zubair Ahmad Dar

Evaluation of incidence, clinical characteristics and management in organophosphorus poisoning patients in a tertiary care hospital

October 2010

Acute poisoning with agricultural pesticides is an emerging global public health problem particularly in developing countries like India. Among the acute poisoning, organophosphorus poisoning (OP) is the most common and responsible for majority of deaths. In the present study, we aimed to correlate the incidence of acute OP poisoning with the type of pesticides, its clinical characteristics and quality of management...

Author(s): Girish Thunga, Kishore Ganna Sam, Kanav Khera, Sureshwar Pandey and Sudha Vidya Sagar

Influence of pollutants on bottom sediment of sewage collecting Kalpi (Morar) River, Gwalior, Madhya Pradesh (M. P.)

September 2010

To investigate the nutrient value of bottom soil pH, conductivity, potassium, exchangeable potassium, total phosphorus, available phosphorus, organic carbon, total nitrogen, available nitrogen, calcium and magnesium were analyzed from monthly samples collected from six sampling stations during two year of study, that is, April 2002-March 2004 of study. Soil from station A was found unpolluted due to low level of...

Author(s): Avnish K. Verma and D. N. Saksena

Determination of aflatoxin M1 in raw milk and traditional cheeses retailed in Egyptian markets

September 2010

AFM1 (Aflatoxin M1) is the major mycotoxin frequently found in milk and dairy products. A total number of 50 raw milk samples and 150 cheese samples (fifty of soft cheese, hard cheese and processed cheese samples) were analyzed. All of the samples were randomly purchased from Egyptian supermarkets in Alexandria city from February 2008 to March 2009. The method used was ELISA. Results showed that the mean concentration...

Author(s): A. Amr Amer and M. A. Ekbal Ibrahim

Faecal and heavy metal contamination of some freshwaters and their vicinities in Ijebu-north, Southwestern Nigeria

August 2010

Freshwater contamination poses several serious risks to human health. This study was designed to determine the level of faecal and heavy metal contamination in and around some freshwaters in Ijebu North, southwestern Nigeria. Soil samples collected from the vicinities of the freshwater bodies were examined parasitological using test tube floatation method. Soil and water samples were analyzed for Cu, Pb, Cd and Zn....

Author(s): O. M. Agbolade, O. O. Adesanya, T. O. Olayiwola and G. C. Agu

Ameliorative effect of cabbage extract on cadmium-induced changes on hematology and biochemical parameters of albino rats

July 2010

The effect of dietary supplement containing cabbage on cadmium – induced toxicity was studied in wistar rats. The effect of cadmium was investigated in 3 animals groups. Group A, rats were fed normal basal diet only. Group B rats were placed on normal basal, mixed with cadmium chloride (3 mg/kg body weight daily) while group C rats were fed with basal diet mixed with Cadmium chloride (3 mg/kg body weight) and 0.5...

Author(s): F. C. Onwuka, O. Erhabor , M. U. Eteng and I. B. Umoh

The correlation between the malignant proliferation on cholangiocarcinoma cell lines and in bile from Helicobacter pylori infected patients with biliary tract stones

July 2010

Helicobacter pylori has been detected in human tissue and is a candidate for etiologic investigations on the causes of hepatic and biliary tract diseases, but reliable serologic tests need to be developed in order to pursue such investigations. The aim of this study was to assess the correlation between the infection of H. pylori in bile from patients with biliary tract stones and the proliferation of...

Author(s): Xudong Xu, Quan Sun, Zhisu Liu, Lin Zhang, Zhiyong Luo, Yun Xia and Yaqun Wu

Fluorides and dental fluorosis in students from Tula de Allende Hidalgo, Mexico

July 2010

This study correlates and presents the findings of the concentrations of fluorides – an important contaminant of ground water – present in two specific locations: The Ex-Hacienda well, which supplies the community of San Miguel Vindhó; and the Manzanitas-I well, which supplies La Malinche. The study concentrates on the prevalence and severity of dental fluorosis in students between 12 to 15 years old,...

Author(s): Patricia Vazquez-Alvarado, Francisco Prieto-García, Claudia Coronel-Olivares, Alberto José Gordillo-Martinez, Rosa María Ortiz-Espinosa and Alejandra Hernandez-Ceruelos

Effect of Hibiscus sabdariffa anthocyanins on 2, 4-dinitrophenylhydrazine-induced tissue damage in rabbits

April 2010

This study examines the effects of anthocyanin extract of the dried calyces of Hibiscus sabdariffa Linn. on the 2, 4 -dinitrophenylhydrazine (2, 4 -DNPH)-induced cytotoxic effects in rabbits. Twenty male adult rabbits used for the study were divided into four groups. Group 1, the control took only water while animals in groups 2 and 4 received 100 mg/kg body weight of the anthocyanin extract of H....

Author(s): A. Ologundudu, A. O. Ologundudu, O. M. Oluba, I. O. Omotuyi and F. O. Obi 

Wastewater COD removal using sol-gel immobilized humic acid

April 2010

In this study, humic acid which contains both hydrophobic and hydrophilic moieties is successfully entrapped in sol-gel matrix which is used to reduce the chemical oxygen demand (COD) of Gaza wastewater. The method was very efficient in which more than 90% reduction of the COD had been achieved, it was found that contact time with the matrix, temperature, pH, particles size, adsorbent dose, and agitation speed effect...

Author(s): Rafik Helles

Organic pollution from the Songhua River induces NIH 3T3 cell transformation: Potential risks for human health

December 2009

Epidemiological investigation has shown that organic contamination of the Songhua River is a risk factor for tumor development among residents who live nearby. A mutagenesis is induced by organic contamination using short-term genotoxic bio-assays. To further investigate the risk of carcinogenic potential to human health, the NIH3T3 cell line was used to examine the induction of transformation by diethyl...

Author(s): Jia-Ren Liu, , Hong-Wei Dong, Xuan-Le Tang, Jia Yu, Xiao-Hui Han, Bing-Qing Chen, Chang-Hao Sun and Bao-Feng Yang

Comparative nephrotoxic effect associated with exposure to diesel and gasoline vapours in rats

December 2009

Comparative effect of exposure to 20.7 ± 5.8 cm3 h-1kg-1m-3 day-1 of diesel and gasoline vapours on the kidney functions was assessed in rats. It was observed that exposure to diesel and gasoline vapours produced a significant increase (P < 0.05) in serum creatinine, urea, BUN, uric acid, glucose and K+; and a significant decrease (P < 0.05) in serum Na+ and Cl- levels. However, the percentage...

Author(s): F. E. Uboh, M. I. Akpanabiatu, J. I. Ndem, Y. Alozie and P. E. Ebong

Contamination profile of major rivers along the highways in Ondo State, Nigeria

August 2009

The quality of major rivers (Oluwa, Owena, Ogbese and Ose) along the highways in Ondo state, Nigeria were investigated using water, surface sediment and African catfish, Clarias gariepinus, as environmental indicators. Results from the study revealed that some of the water quality constituents exceeded the World Health Organization (WHO) standards for drinking water and water meant for other recreational...

Author(s): I. A. Ololade and A. O. Ajayi

Fluoride and thyroid function in children in two villages in China

August 2009

Author(s): Quanyong Xiang, Liansheng Chen , Youxin Liang, Ming Wu and Bingheng Chen

Page 4 of 5, showing 50 records out of 206 total, starting on record 151, ending on 200