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 …

Risk assessment of heavy metal toxicity through contaminated vegetables from waste water irrigated area of Varanasi, India

In certain areas of Varanasi city, waste water from Dinapur sewage treatment plant is used for irrigating vegetable plots. We quantified the concentrations of heavy metals, viz. Cd, Cr, Cu, Ni, Pb and Zn in soil, vegetables and the waste water used for irrigation. The waste water used for irrigation …

Heavy metal contamination of Ganga river at Varanasi in relation to atmospheric deposition

We investigated the mid stream water quality of Ganga river as influenced by aerially - driven heavy metals at Varanasi, India. Twelve sampling stations were selected along a 20 km long stretch of the river. Mid stream sub-surface water samples collected at fortnightly intervals from all the sites were acid …

Comments on draft E-waste (Management and Handling) Rules, 2010

E-waste Rules, 2010 is a very important regulation issued by Ministry of Environment & Forest as it integrates the most progressive principle of Extended Producer Responsibility. The Draft Rules, though, need to look closely at the guiding objective and formulate and mandate measures based on that. It also needs to …

Air cleaning reveals hidden danger

Pilot Study In CP Finds Disturbing Levels Of Heavy Metals That Pose Health Threat New Delhi: That the air we breathe is polluted is known to one and all. But did you know that we also breathe in heavy metals like thorium, uranium, lead and arsenic that pose a serious …

Metal biosorption by Helminthosporium solani a simple microbiological technique to remove metal from e-waste

Electronic waste (e-waste) or Waste from Electronic and Electrical Equipment (WEEE) as it is popularly called includes used, obsolete or damaged electronic and electrical equipments and other such scrap. Recycling of WEEE has emerged as a lucrative business as these products are stripped down to obtain valuable metals like platinum, …

Indian student wins top US research award

Prasun Chatterjee, an Indian environmental engineering student whose research has contributed to a new way of detecting toxic lead and copper in water, has won one of the highest US research honours. Chatterjee, a research student at the University of Lehigh, Pennsylvania, will receive the 2010 C Ellen Gonter Environmental …

Assessment of heavy metals in water samples of certain locations situated around Tumkur, Karnataka, India

Surface water and groundwater samples of certain locations namely Kallambella, Bugudanahalli, Maidala, Honnudike, Kunigal, Kadaba and Hebbur, situated around Tumkur were assessed in the month of September 2008 for pH, EC and heavy metals Cd, Cu, Fe, Hg, Mn, Zn and Ni. The pH vales of surface waters were in …

Toxic metal contamination in cotton based paper mill effluent

A number of studies have already been carried out for the metal analysis of paper mill effluents which are generally using wood and non-wood (bamboo, baggase etc.) as fibrous raw material for paper manufacturing process. This study deals with a paper mill which is using cotton comber and cotton liner …

Integrated study for automobile wastes management and environmentally friendly mechanic villages in the Imo River basin, Nigeria

Despite the overwhelming advantages of mechanic villages, their heavy metal pollution of soil due to poor waste management is causing serious ecological and public health concerns. Analytical results show that heavy metal concentrations (mgkg-1) above background levels in the upper 100 cm soil profiles of the Okigwe, the Orji and …

Heavy metal contamination of groundwater resources in a Nigerian urban settlement

The aim of the study was to create awareness on the effect of dumpsite on groundwater in developing countries, especially Nigeria. In order to achieve this, water samples were obtained from 20 randomly selected hand dug wells and boreholes in the area, in February and August, 2006. 10 leachates samples …

Cultivation of tomato plants (Lycopersicon esculentum) using municipal solid waste compost

Tomato (Lycopersicon esculentum) is considered as one of the most essential vegetable crops for human nutrition. The deficiency of plant nutrients causes different changes in the physiological and biochemical processes within the plant cell resulting in a reduction of growth, delay of development and qualitative and quantitative decrease of yield, …

Performance and risk assessment of bambara beans grown on petroleum contaminated soil and the biostimulation implications

The potential of Vigna subterranean commonly called Bambara beans for phytoextraction of copper in a crude oil contaminated soil was investigated. The contamination levels of crude oil in the soil for this pot experiment were 2, 4, 6, 8 and 10% (w/v). Amendments were added to increase the uptake and …

Colours not so natural

Using herbal colours to celebrate Holi festival is not as safe as one would think. Tests by Maharashtra Pollution Control Board on colours picked randomly from markets in Mumbai showed presence of heavy metals in all colours, including herbal ones. Exposure to even small quantities of heavy metals can cause …

Aquatic plants act as natural water purifier, says study

At the time when there is so much discussion about conserving the lakes of the city and removing pollution, a recent study has shown that plants like normal Water Hyacinth and Eichhornia Crassipes function like natural water purifiers and remove heavy metals, nitrates and phosphorous from the lakes. The study …

Sri Lanka Standards on lead content of paints

Dr. A. R. L. Wijesekera- Chairman, Sri Lanka Standards Institution The Sri Lanka Standards Institution (SLSI) is aware of the current position regarding the concerns of the general public in respect of the lead content of paints available in Sri Lanka. SLSI has, accordingly, taken the following course of action: …

Indian honey has antibiotics, traces of heavy metals, says EU

Ban on imports likely from April. Alleging the presence of antibiotics and heavy metal residues in Indian honey, the European Union has threatened to ban such imports from next month, official sources told Business Line. The EU is the second largest destination for Indian honey exports after the US. The …

Rural India drinks contaminated water

While about 1.80 lack rural habitations across the country have been reported with excess contamination of available drinking water, as many as 111 districts in different States and Union Territories either do not have water quality testing laboratory or upgraded the existing ones to track various kinds of contaminants. According …

Not enough to drink: Groundwater in 33% of India undrinkable

Iron, Fluoride, Salinity, Arsenic Beyond Tolerance Levels In Many Districts: Govt New Delhi: Groundwater in more than a third of Indian districts is not fit for drinking. The government, in reply to a parliamentary question, admitted that iron levels in ground water are higher than those prescribed in 254 districts …

Measurement and analysis of toxic metals concentration influencing continental atmosphere

This document contains the presentation by Tarun Gupta, Abhishek Chakraborty on toxic metals influencing continental atmosphere, presented at National climate research conference, IIT Delhi, March 5-6, 2010. Atmospheric aerosols stimulate strong research interest primarily due to their importance in influencing climate over both land and water, and causing deleterious effects …

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