Time filter

Source Type

Meerut, India

Chaudhary V.,CSSS PG College | Kumar M.,SVBPUA and T | Sharma M.,MD PG College | Yadav B.S.,Agriculture Research Station
Environmental Monitoring and Assessment | Year: 2010

The study was carried out to access the fluoride, boron, and nitrate concentrations in ground water samples of different villages in Indira Gandhi, Bhakra, and Gang canal catchment area of northwest Rajasthan, India. Rural population, in the study site, is using groundwater for drinking and irrigation purposes, without any quality test of water. All water samples (including canal water) were contaminated with fluoride. Fluoride, boron, and nitrate were observed in the ranges of 0.50-8.50, 0.0-7.73, and 0.0-278.68 mg/l, respectively. Most of the water samples were in the categories of fluoride 1.50 mg/l, of boron 2.0-4.0 mg/l, and of nitrate <∈45 mg/l. There was no industrial pollution in the study site; hence, availability of these compounds in groundwater was due to natural reasons and by the use of chemical fertilizers. © 2009 Springer Science+Business Media B.V.

Efforts were made to evaluate nitrate (NO-3) content in the groundwater of rural habitations of western Uttar Pradesh, India. 61 water samples from 31 villages of district Meerut were evaluate for nitrate contamination. Nitrate level observed in the range 7.92-298.20 mg/l for individual samples and average nitrate for total samples was 71.31 ± 58.12 mg/l. 60.6% water samples were contained nitrate more than permissible limit of 45 mg/l as per U.S. EPA (Environment Protection Agency). Heavy use of nitrogenous fertilizer was identified as major responsible factor for nitrate elevation in groundwater along with open dumping of animal excreta and open laterine system of rural habitants. Groundwater is the only source of drinking water and for irrigation of 81.8% total irrigated land in the study area. Results indicated for non-suitability of groundwater for domestic purposes. Water purification techniques are not in use in the study area and continuous consumption of such water may pose serious health hazardous in villagers.

Singh A.,University | Singh A.,Guru Jambheshwar University of Science and Technology | Gupta A.,University | Gupta A.,CSSS PG College | Chaudhary V.,University
Vegetos | Year: 2010

The study reveals the suitability of inexpensive adsorbents to effectively remediate fluoride (F) contaminated water. Bark of Azadirachta indica (Neem) and Acacia nilotica (Keekar) plants was used to defluoridate water samples. The efficiency of the sorption of F is affected by pH, contact time and adsorbent dose. Maximum percent removal of F was obtained on pH 6 and 60 minutes of contact time with 5 ppm standard solution of F. Significant adsorption of F occurred on 1.2 gm/100ml dose of Neem adsorbent and 1.0 gm/100ml dose of Keekar adsorbent. The adsorption equilibrium is well correlated by Freundlich model for both the adsorbents. These findings would be helpful in development of cheap and safe fluoride removal technology.

Efforts were made to evaluate the hazardous pesticide in ground drinking water from different villages located at Kali east river. Pesticides are of concern because of their bioconcentration activity, lipophylic nature, long life time and long range transportation Total 64 ground water samples and 4 surface water samples collected from hand pumps and tube wells were analyzed for 13 pesticides. Liquid-liquid extraction method was carried out and GC-ECD was performed. The Eldrin concentration was higher and another was within the permissible limit (WHO 2004) The concentration of DDT, its derivatives, BHC and its derivatives were in the permissible limit except γ BHC. Heptachlor and their derivatives, aldrin and Endosulphane were found under the permissible limit. Direct run-off, leaching and careless disposal are major factors responsible for pesticides incidence in groundwater aquifer, the only source of drinking water in the study area. © 2015, Society for Plant Research. All rights reserved.

Chaudhary V.,CSSS PG College | Sharma M.K.,National Institute of Hydrology
Toxicological and Environmental Chemistry | Year: 2010

The objective of this study was to determine the blood lead level (BLL) of children aged under 5 living in western Uttar Pradesh, India. A total of 100 blood samples, 100 drinking water samples, and 21 vegetable samples were assessed for lead (Pb) contamination. BLL was observed in the range of 3-11.58 μg dL-1with a maximal level of 11.58±0.05 μgdL-1 in Kazipur village. Lead in water samples was detected in the range of 0.006-0.095 ppm and identified at upto 9.5-fold higher than the stated permissible limit. A significant positive correlation (+0.679) was obtained between BLL and water Pb levels. All vegetable samples were also contaminated with Pb upto 12-fold higher than the permissible limit of 2.5 μgg-1 of Prevention of Food Adulteration Act (PFA) 1954. Untreated industrial effluents were identified as the responsible factors for Pb occurrence in the study area. The presence of lead may be associated with the increased antisocial activities of children living in western Uttar Pradesh. Children with elevated BLL had poorer nutritional status than those with background Pb levels. There is an urgent need for a national campaign to monitor the BLL of children in India. © 2010 Taylor & Francis.

Discover hidden collaborations