Abstract:
:Organochlorine pesticides residue (isomers of HCH alpha, beta, gamma and DDT) in Kuano river water at pre-monsoon and post-monsoon period were analyzed for the period June, 2004 to May, 2006 by TLC method. Results indicated that presence of isomers of HCH (alpha, beta, gamma) and DDT in both the study years even though the usage of both these pesticides is restricted. The higher concentration of pesticide was found in post monsoon. The total concentration of HCH ranges from 0.0002 to 0.020 microg l(-1) and 0.0002 to 0.009 microg l(-1) and total DDT concentration ranged from 0.0009 to 0.003 microg l(-1) and 0.00 to 0.0010 microg l(-1) during first and second year of study respectively. No temporal or spatial distribution pattern was found perhaps due to presence of multiple and aleatory sources. In most of the samples the pesticides residues detected were much higher than drinking water quality standards. It can be inferred that the environment maybe considerably degraded by these compounds, providing additional impact to the biota and bringing a potential risk to human health. More detailed Monitoring/studies have to be carried out on different months with a wider spectrum of pesticides to get a clear base line data for the entire location.
journal_name
J Environ Bioljournal_title
Journal of environmental biologyauthors
Singh S,Mishra RNsubject
Has Abstractpub_date
2009-05-01 00:00:00pages
467-8issue
3eissn
0254-8704issn
2394-0379journal_volume
30pub_type
杂志文章abstract::The present study examined a total of 446 samples of Ompok bimaculatus and describes the condition factor, gonadosomatic index, length-length relationships, sex ratio, size at first maturity. The regression parameter 'b' ranged from 3.06 to 3.76 (r2 > 0.90). During the pre-monsoon, the allometric coefficient 'b' of th...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2013-11-01 00:00:00
abstract::Effect of paper mill effluents on Phaseolus aureus Roxb was studied. The effluent significantly inhibited germination of root and shoot length. The bio-chemical injury does not appear spontaneously but with the increase in effluent treatment there is reduction in observed biochemical parameters (chlorophyll, protein, ...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2005-06-01 00:00:00
abstract::A preliminary investigation was conducted to assess lignocellulolytic efficiency of crude extracts from three white-rot fungi, Pleurotus florida PF05 (PF), Pleurotus sajor-caju PS07 (PS) and Pleurotus eryngii PE08 (PE). The activities of CMC-ase, xylanase, beta-glucosidase, beta-xylosidase, laccase and Mn peroxidase i...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2010-11-01 00:00:00
abstract::Pesticides, spinosad, imidacloprid and neem oil are widely used both in residential and agricultural environments because of its broad spectrum insecticidal activity and effectiveness. The present study was undertaken to estimate genotoxicity of formulations of some pesticides in mice. Three pesticides of diverse grou...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2016-03-01 00:00:00
abstract::The effect of chronic exposure to carbofuran (4.5 ppm in static water) for six months on the gonadal histophysiology and hypothalamo-neurohypophyseal complex was studied in Channa punctatus. Experimental observations revealed significant inhibition of gonadal development with associated degenerative abnormalities as e...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2001-07-01 00:00:00
abstract::The present studies were conducted on the ability of males of the gray shrew, Notiosorex crawfordi to use tactile cues to detect and respond to changes in topographical features of their environment. The animals were videotaped, digitized, and analyzed through video recordings. All subjects showed habituation (decreas...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2006-05-01 00:00:00
abstract::Three trace heavy metals viz., nickel, copper and zinc were studied for their toxic action against Poecilia retriculata (Peters). Among these, copper was found to be most active followed by zinc and nickel. Accumulations of these metals as well as behavioural studies were carried out after exposing fish to sub-lethal ...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2001-04-01 00:00:00
abstract::Phaeophyscia hispidula (Ach.) Moberg, foliose lichen is widespread in Garhwal Himalayas and grows luxuriantly on different substratum in polluted as well as non polluted sites, where no other macrolichens are able to colonize. The elemental concentration and biochemical parameters in P. hispidula collected from Dehra ...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2012-11-01 00:00:00
abstract::Protective efficacy of MPG (2-mercaptopropionyl glycine) was studied against the toxic effects of lead acetate in Swiss albino mice. The animals were treated with single dose of lead acetate @ 180, 200 and 250 mg/kg b.wt. in presence and absence of MPG. The results indicated that the body weight was slightly higher in...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2001-10-01 00:00:00
abstract::Vegetative and reproductive phenology of Barringtonia acutangula, a floodplain tree species was studied at Chatla floodplain, Assam North East India with the aim to investigate vegetative and reproductive phenology under stressful environment of seasonal submergence and to assess the impact of environmental variables ...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2016-03-01 00:00:00
abstract::The present investigation deals with fluoride removal from aqueous solution by thermally activated neem (Azadirachta indica) leaves carbon (ANC) and thermally activated kikar (Acacia arabica) leaves carbon (AKC) adsorbents. In this study neem leaves carbon and kikar leaves carbon prepared by heating the leaves at 400 ...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2008-03-01 00:00:00
abstract::The toxicity studies were conducted on the fish Channa punctata (Bloch) by employing static and continuous flow through systems, for the toxicant butachlor (technical grade+) and its commercial formulation+ (machete 50% EC). The LC50 values are 297.89 ppb and 247.46 ppb for 24 hr and 48 hr in static for technical and ...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2007-04-01 00:00:00
abstract::This study reports the effects of low level developmental Pb exposure on specific brain regions like hippocampus, cerebellum and cerebral hemispheres of antioxidant enzyme activities. Wistar dams were exposed to 50 ppm, 100 ppm and 500 ppm of Pb acetate in drinking water during pregnancy and lactation (gestation day 6...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2007-01-01 00:00:00
abstract::In the present study, water samples from 3 stations of Kor river, Iran were analyzed for seasonal fluctuation of physico-chemical parameters, i.e. air and water temperature, dissolved oxygen, BOD, COD, total nitrogen, total hardness, pH, alkalinity, acidity, total dissolved solid and water current. Effect of physico-c...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2008-09-01 00:00:00
abstract::The purpose of this study is to investigate the factors that cause malformed frogs in upstream Kaoping river (KP site) and Tungkang river (T site) of Southern Taiwan. In this experiment, the activities of monooxygenase (MO), glutathione-S-transferase (GST), acetylcholinesterase (AchE) as well as the concentration of v...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2011-11-01 00:00:00
abstract::Di-n-butyl phthalate (DBP) is a ubiquitous environmental pollutant, extensively used as a softener for polyvinyl chloride resins. A study was conducted to evaluate its effect on reproductive function of Wistar rats. DBP was given orally at a dose of 500, 1000 and 1500 mg kg(-1) body weight for 7 days. Evaluating histo...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2008-09-01 00:00:00
abstract::Most of the statistical techniques used to evaluate the data obtained from toxicity studies are based on the assumption that the data show a normal distribution and homogeneity of variance. Literature review on toxicity studies on laboratory animals reveals that in most of the cases homogeneity of variance alone is ex...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00
abstract::Effects of basic oxygen furnace (BOF) slag, inorganic nutrients and H2S on the germination of resting cysts of two toxic dinoflagellates Alexandrium catenella/tamarense and Gymnodinium catenatum were studied in batch cultures. The germination rate of the test species has increased by 23-25%, when the concentration of ...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2004-04-01 00:00:00
abstract::Two year (1998 and 1999) extensive survey was carried out in Mandya district hospital, Karnataka for a period of three years to monitor the prevalence of Staphylococcus aureus, Pseudomonas aeruginosa (S. aureus and Ps. aeruginosa) from the indoor air samples of operation theater labor room, children's ward, male and f...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2007-04-01 00:00:00
abstract::An experiment was conducted in pots of 25 kg capacity to study the effect of saline irrigation (EC 0,5,10,15 and 20 dSm-1) prepared by mixing NaCl, NaSO4, CaCl and MgCl2 in 3:1 ratio of chloride and sulphate on gas exchange traits, membrane stability, chlorophyll stability index and osmolytic defense mechanism in Zizi...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2016-09-01 00:00:00
abstract::The study on photosynthetic activity and biochemical parameters in Thompson Seedless grapes grafted on Dog Ridge rootstock and its impact on growth, yield and amino acid profile at various stages of berry development was conducted during the year 2012-2013. Leaf and berry samples from ten year old vines of Thompson Se...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2014-11-01 00:00:00
abstract::The present study addresses the problem of organic farmers' that needs local organic resources with their enhanced quality to effectively fertilize their agriculture crops. In accordance with the objective of the experiment that is about enhancing quality of compost, a blend of organic resources, comprising cow manure...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2016-09-01 00:00:00
abstract::The present investigation was carried out in Cachar district of Assam over a period of one year (January 2011 - December 2011) to understand the seasonal ecology of Acarina (Oribatida) in rice (Oryza sativa L.) cultivated fields. Population of Oribatida was found to be maximum during August 2011, both in no-tillage (6...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2015-01-01 00:00:00
abstract::Genomic DNA methylation is one of the most important epigenetic modifications in eukaryotes play vital role in development of severe disease like cancer. Many techniques used for assessment of DNA methylation, bisulfite treatment followed by methylation specific polymerase reaction (MSP) are one of them, which introdu...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2013-07-01 00:00:00
abstract::We determined the levels of brain acetylcholinesterase (AChE) and tail butyrylcholinesterase (BChE) activities in tadpoles of Odontophrynus americanus exposed to a commercial formulation of fenitrothion. The mean brain AChE activities in the controls tadpoles varied from 6.91 to 6.39 micromol min(-1) mg(-1) protein, w...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2009-09-01 00:00:00
abstract::The present communication deals with the bacteriological examination of a pond water, which is being used as one of the sources of drinking water, by multiple tube fermentation test to detect the coliform bacteria. The test was performed sequentially in three stages: presumptive, confirmed and completed coliform test....
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2002-07-01 00:00:00
abstract::A defined microbial consortium was developed for the degradation of isoprothiolane. Isoprothiolane-biodegradation parameters were optimized using Response Surface Methodology (RSM). Three variables chosen for the study were inoculum concentration (50-1500 microg protein ml(-1)), temperature (25-35 degrees C) and pH (4...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2013-05-01 00:00:00
abstract::We studied the effects of stand parameters (crown closure, basal area, stand volume, age, mean stand diameter number of trees, and heterogeneity index) and geomorphology features (elevation, aspect and slope) on tree species diversity in an example of untreated natural mixed forest stands in the eastern Black Sea regi...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2008-05-01 00:00:00
abstract::Extracts of neem (Azadirachta indica A.) and mata-raton (Gliricidia sepium) leaves were used as insect repellent during organic cultivation of tomato plants (Solanum lycopersicum) and were compared with untreated plants or plants treated with lambda-cyhalothrin (chemical treatment). The best developed tomato plants we...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2014-09-01 00:00:00
abstract::To remove turbidity and minimize microbiological risks, rapid sand filtration is one of main drinking water treatment processes in the world. However, after a long-term operation, sand particles will be colonized by microorganisms which can remove biodegradable organic matters and nitrogen compounds. In this study, 16...
journal_title:Journal of environmental biology
pub_type: 杂志文章
doi:
更新日期:2013-04-01 00:00:00