Countries agree UN mercury rules

More than 140 countries have agreed on a set of legally binding measures to curb mercury pollution, at UN talks.

Delegates in Geneva approved measures to control the use of the highly toxic metal in order to reduce the amount of mercury released into the environment.

Mercury can produce a range of adverse human health effects, including permanent damage to the nervous system.

The UN recently published data that showed mercury emissions were rising in a number of developing nations.

The deal was agreed after all-night talks.

"After complex and often all night sessions here in Geneva, nations have today laid the foundations for a global response to a pollutant whose notoriety has been recognised for well over a century," UN Environment Programme executive director Achim Steiner said on Saturday.

"Everyone in the world stands to benefit... in particular the workers and families of small-scale gold miners, the peoples of the Arctic and this generation of mothers and babies and the generations to come."

The rules, known as the Minamata Convention and named after the Japanese town that experienced one of the world's worst cases of mercury poisoning, will open for nations to sign at a diplomatic conference later this year.

The convention will regulate a range of areas, including:

• the supply of and trade in mercury;
• the use of mercury in products and industrial processes;
• the measures to be taken to reduce emissions from artisanal and small-scale gold mining;
• the measures to be taken to reduce emissions from power plants and metals production facilities.

Ahead of the five-day meeting, Unep published a report warning that developing nations were facing growing health and environmental risks from increased exposure to mercury.

It said a growth in small-scale mining and coal burning were the main reasons for the rise in emissions.

As a result of rapid industrialisation, South-East Asia was the largest regional emitter and accounted for almost half of the element's annual global emissions.

Lasting effects

Mercury - a heavy, silvery white metal - is a liquid at room temperature and can evaporate easily. Within the environment, it is found in cinnabar deposits. It is also found in natural forms in a range of other rocks, including limestone and coal.

source BBC