Field experiment was conducted to study the persistence of pretilachlor in soil and its residues in post harvest straw and grain.

A highly selective and sensitive chromatographic technique in combination with electro chemical as well as photo-active detection has been developed to identify and determine trace levels of phenoxy herbicides. Also, the photo-oxidation of hazardous herbicides by strong oxidizing agent hydrogen peroxide in the presence of UV radiations is also investigated.

UV photochemical degradtion of chlorotoluron was shown to be a photolytic process non-influenced by the presence of environmentally important catalyst (ferric ions) or sensitizers (soil humic isolate and humic peatbog wate), independent of pH values in the range from 2 to 11.

In this systematic review the researchers evaluated the evidence on the association between dioxin exposure and cardiovascular disease (CVD) mortality in humans.

Marcus Dam

KOLKATA: The authorities of tea gardens near the Mahananda Wildlife Sanctuary in north Bengal have been asked by the State's wildlife authorities to control the spraying of chemical herbicides in the wake of the death of three elephants of poisoning within a span of 24 hours last week.

The elephants, all females, were found dead on July 18 and 19 near the Simulbari tea estate in West Bengal's Sukna forest range in Darjeeling district.

The wildlife authorities have ordered an inquiry into the incident.

Outflow from agricultural fields carries diffuse pollutants like nutrients, pesticides, herbicides etc and transports the pollutants into the nearby streams. It is a matter of serious concern for water managers and environmental researchers.

Biotechnology proponents claim that genetically modified (GM) crops are good for consumers, farmers and the environment, and that they are growing in popularity around the world.

Biotechnology proponents claim that genetically modified (GM) crops are good for consumers, farmers and the environment, and that they are growing in popularity around the world. Unfortunately, journalists often report such claims as fact, without first subjecting them to critical scrutiny.

>> In the latest plan to stem the flow of the mud volcano that erupted last year in East Java, Indonesia, a US $69 million-proposal has been chalked out. A concrete dam will be built to check the mud flow, which has already displaced around 15,000 people (see

marestail, the glyphosate-resistant weed, continues to spread in the us. So far, it has claimed about one million hectares (ha) in about 12 states and recently, scientists of the University of Nebraska at Lincoln, announced the presence of marestail in Nebraska.

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