News tagged with pollution

Related topics: air pollution , air quality , greenhouse gas emissions , heavy metals , climate change

Air quality and unconventional oil and gas sites

Research suggesting air pollutants released by unconventional oil and gas production are well over recommended levels in the US is published today in the open access journal Environmental Health. High levels of benzene, hydrog ...

Oct 30, 2014
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Lagos tries to tackle noise pollution

Nigeria's chaotic megacity Lagos on Wednesday sought to impose a one-day ban on the use of the car horn, hoping to raise awareness about damaging noise pollution and improve quality of life.

Oct 15, 2014
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'White' light suppresses the body's production of melatonin

Exposure to the light of white LED bulbs, it turns out, suppresses melatonin 5 times more than exposure to the light of High Pressure Sodium bulbs that give off an orange-yellow light. "Just as there are regulations and standards ...

Sep 12, 2011
popularity 5 / 5 (19) | comments 23 | with audio podcast

Hidden dangers in the air we breathe

(Medical Xpress)—For decades, no one worried much about the air quality inside people's homes unless there was secondhand smoke or radon present. Then scientists at the U.S. Department of Energy's Lawrence ...

Apr 11, 2013
popularity 3 / 5 (2) | comments 1 | with audio podcast

Pollution

Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms . Pollution can take the form of chemical substances, or energy, such as noise, heat, or light energy. Pollutants, the elements of pollution, can be foreign substances or energies, or naturally occurring; when naturally occurring, they are considered contaminants when they exceed natural levels. Pollution is often classed as point source or nonpoint source pollution. The Blacksmith Institute issues annually a list of the world's worst polluted places. In the 2007 issues the ten top nominees are located in Azerbaijan, China, India, Peru, Russia, Ukraine and Zambia.

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