The Centre on Wednesday announced that both industrial and residential areas will not have different standards for air quality norms. In a major move to bring down the air pollution levels, the Centre unveiled tougher new air quality norms. The revised guidelines have added five more hazardous chemicals in the list of the National Ambient Air Quality Standards (NAAQS) for monitoring.

The Ministry of Environment and Forests (MoEF) has notified the Revised National Ambient Air Quality Standards (NAAQS), 2009, which provide a legal framework for control of air pollution and protection of public health. The revised norms have come 15 years after the Central Pollution Control Board (CPCB) had notified the previously existing NAAQS in 1994.

Revised National Ambient Air Quality Standards 2009 released by the Ministry of Environment and Forests. As per these norms, the residential & industrial areas will have the same standards. Includes limits for benzene, ozone, benzopyrene, arsenic, nickel and ammonia not covered in 1994.

Residents of the world's largest cities are ideally positioned to achieve the twin goals of clean air and lower carbon emissions, according to scientists in China and the US.

Europeans back efforts to amend the Montreal Protocol to address global warming.

Pollution from carbon monoxide, nitrogen dioxide, sulphate and suspended particulate matter due to ignition of fireworks during the festival of Diwali is well established. Although surface ozone exhibits high natural variability throughout the year, any short term enhancement in ozone levels coupled with high level of pollutants during Diwali might prove to be deadly for a large number of elderly people and children with heart and respiratory ailments. Despite this fact, very little study on surface ozone pollution during the festival of Diwali has been reported from India so far.

The most commonly-known f-gases are the early, so-called first generation F-gases: the CFCs that destroyed the ozone layer and were banned by the Montreal Protocol. However, in the race to save the ozone layer, the use of their second generation cousins was accelerated: HCFCs, now also banned under the Montreal Protocol.

Ahmedabad: Have you experienced more rainfall in your area than usual? Have you often used the expressions

Breathing polluted air for even two hours can boost blood pressure, potentially raising the risk of cardiovascular disease in those exposed to smog, a new study suggests.

The United Nations Secretary General (UNSG) in his message to commemorate the International Day for the Preservation of the Ozone Layer, on Wednesday, has urged for implementation of agreed environmental goals, targets and objectives for protection of the "Earth's Protective Shield." "Without action on climate change, the world faces profound social, economic and environmental disruption," warned

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