Delhi's toxic haze 'fueled by political wrangling'

Ranked as the world's most polluted capital city for four consecutive years, Delhi's dual governance structure involving politically opposed parties has prevented its leaders from agreeing on how to deal with a steadily worsening ...

Mechanism of bacterial toxins in deadly attacks

Only one thousandth of a milligram of the bacterial botulinum toxin is necessary to kill a living organism. The toxin unfolds its lethal effect by preventing the release of neurotransmitters at the point where nerve cells ...

Hunting down toxic substances in sludge

Analytical chemists Gabriela Castro Varela and Alexandros Asimakopoulos are hunting for toxic and unregulated chemical substances in the sewage sludge that is a by-product from the water treatment plants of Trondheim municipality.

US to reimpose limits on power plants' mercury emissions

The US government announced Monday it wants to revive a regulation limiting air emissions of mercury and other toxic substances from fossil fuel-fired power plants that had been undermined by the previous administration.

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