Heavy Metals
Order of the National Green Tribunal regarding pollution of Godavari river, Telangana, 29/05/2025
Order of the National Green Tribunal in the matter of News Item titled "Telangana: Deepening pollution crisis in Godawari threatens lives livelihoods appearing in the Telangana Today dated 13.05.2025" dated 29/05/2025. The application was registered suo-motu on the basis of the news item titled Telangana: Deepening pollution crisis in Godawari …Silt management in run-of-the river hydroelectric project - A case study
The present study evaluated the options of silt disposal from Beas Satluj Link (BSL) hydroelectric project in Himachal Pradesh in India. BSL project is basically a run of the river power project, envisages diversion of about 4700 MCM per annum of Beas river water into Satlej river falling through an …Consumption of heavy metal and minerals by adult women through food in sewage & tube-well irrigated area around Ludhiana city
A dietary survey was carried out during summer and winter seasons on 20-40 years old subjects i.e. 23 and 49 women from sewage and tube well irrigated areas, respectively around Ludhiana city (Punjab, India). Raw food samples from both the areas were analyzed for various minerals. Mineral intake by individual …Pure myth
When was the last time you drank water straight from the tap at your house to slake thirst on a hot summer day, without hesitation. Chances are you would have at least boiled or filtered the water. The public water supply in India is so unreliable that the urban middle …Purifying the purifier
A consumer looking for a water purifier is most likely to be confronted with a fusillade of quality claims. K J Nath, president, Institution of Public Health Engineers in Kolkata is not sure about their veracity. "A lot of the tall claims by private players cannot be substantiated scientifically,' he …Pollution studies on the road side paddy fields of Kanyakumari District, Tamil Nadu, India
To study the effects of pollution on road side paddy fields, three paddy fields situated at Kuttikkulam, Elamankulam and Rajathanthirikkulam near National Highway-47 passing through Kanyakumari district in Tamil Nadu and a control paddy field far away from National Highway 47 in Kuttikkulam area which was free from highway run-off …Residue monitoring plan for 2008 for drugs, pesticides and heavy metals for export of honey to the European Union
Residue levels of drugs, pesticides and heavy metals in food commodities, is becoming a major concern for food regulators all over the world. Since the residue levels cannot be changed drastically through various production techniques and because it is necessary to provide safe food to the consumers, it is essential …Comparative toxic effect of four selected heavy metals on flower tail shrimp Metapenaeus Dobsoni
Static renewal bioassay renewing 50% estuarine water in 24 hours was conducted following guidelines given in APHA (1980). Acute toxic effects of heavy metals such as Hg, Cd, Zn and Cu were studied on juveniles of Metapenaeus dobsoni. (2007)Differential accumulation of manganese in three mature tree species (Holoptelia, Cassia, Neem) growing on a mine dump
Three trees, including Cassia siamea (Cassia), Azadirachta indica (Neem), Holoptelia integrifolia (Holoptelia)belonging to three different families were identified from a manganese mine tailing dump. Manganese content in dump soil and in the stem, green leaves and dry, fallen leaves of the plants was determined. Values were compared with similar samples …Reduction in heavy metals deposition over Europe
Heavy metals in the atmosphere may travel over large distances before being re-deposited on land. One effective way of monitoring how deposition changes with time is to measure concentrations in moss. A bio-monitoring network coordinated by the United Nations Economic Commission for Europe (UNECE) provides data on the concentration of …Chemical status of waters of Chenab River, Ramban area, Jammu and Kashmir state
Twenty water samples of Chenab, Ramban area were analysed for Ca, Mg, K, Na, Fe, Mn, Cu, Ni, Zn and Pb by Atomic Absorption Spectrophotometry. The analysis revealed that all the cations are present within the permissible limits except Fe, Mn and Ni which are slightly present in higher concentrations.Traditional aquaculture practice at East Calcutta wetland: The safety assessment
The current study is on East Calcutta Wetland (ECW) which is a model for multi-use resource recovery system with activities like pisciculture and agriculture. The entire city's soluble waste is disposed into the raw sewage canals which finally drains into the shallow, flat bottom fish ponds called Bheri. These sewage …Endangered gharials die mysterious death
more than 40 gharials were found dead downstream in the Chambal river, ahead of its confluence point with the Yamuna. Preliminary reports indicated liver cirrhosis was among the causes of the deaths, said D N S Suman, chief wildlife warden of Uttar Pradesh. According to GSridhar, divisional forest officer, wildlife, …Industrial processing contaminates tea
your morning tea contains chromium, which may cause cancer and skin diseases. The heavy metal gets into the leaves when tea leaves are processed using theTrace metal concentration in marine zooplankton from the western Bay of Bengal
Trace metal contents in zooplankton samples were estimated as a part of Marine Research-Living Resource Programme (MRLR) programme at 24 stations to establish the importance of these metals in the Bay of Bengal. The average concentration of Fe, Co, Ni, Cu, Zn, Cd and Pb in zooplankton from the Bay …Evaluation of biomonitoring approach to study lake contamination by accumulation of trace element in selected aquatic macrophyte
A biomonitoring study was carried out at Kanewal reservoir, an internationally important wetland listed in Asian Directory of Wetlands, designated as a "Wetland of National Importance' and a proposed community reserve of Gujarat State, India, to ascertain the degree of trace element contamination. The study focused on assessment of trace …High-tech trash
People have always been proficient at making trash. Future archaeologists will note that at the tail end of the 20th century, a new, noxious kind of clutter exploded across the landscape: the digital detritus that has come to be called e-waste. More than 40 years ago, Gordon Moore, co-founder of …Metals concentration associated with respirable particulate matter (PM10 ) in industrial area of eastern U.P. India
The present study deals with the assessment of ambient air quality with respect to respirable suspended particulate matter (RSPM or PM10 <10 m) and trace metals (Fe, Zn, Cu, Cr, Ni, Cd, Mn and Pb) concentrations in RSPM at five locations of Renukoot, an industrial area of Eastern Uttar Pradesh. …Effect of different organic materials on maize at different concentrations of lead
The present study was undertaken to know the effect of concentration of lead (Pb) and different organic materials on the maize yield, concentrations of lead on maize plants and diethylene triamine penta-acetic acid (DTPA) extractable lead (Pb) on the post harvested soils.Adsorption studies on teak leaves (Tectona grandis): Removal of lead ions from wastewater
Teak leaves (Tectona grandis) abundantly available in India showed high sorption capacity for lead ions and were found efficient for the removal of lead ions from aqueous solutions. The extent of removal was found to be dependent on pH, temperature, concentration of metal ions and the dose of adsorbent.Bioaccumulation of zinc in human head hair of residents of Mainpuri (India)
Human head hair concentration of zinc from 175 subjects (92 male and 83 female) aged between 11 to 51 year in Mainpuri region has been studied by Flame Atomic Absorption Spectrophotometer. The mean concentration of zinc have been found significantly higher in female than in male subjects.