smog

Chinese authorities use a color-coded system of alerts to warn companies, schools and individuals of incoming smog

The safe recommended level of PM2.5 is 10 micrograms per cubic meter, according to the World Health Organisation

Shijiazhuang has seen 10 bouts of serious air pollution so far this winter

The LHC chief justice ordered this while hearing identical petitions in the wake of the recent spell of thick smog

Order comes weeks after top court criticised federal government for failing to do more to tackle pollution

The smog forced many of its 14 million residents to retreat indoors or don face masks in the street

The City District Government Lahore (CDGL) has moved rather swiftly in attempt to mitigate environmental pollution

Protection laws in Pakistan are well-written but their implementation is poor

The Indian capital has been shrouded in a toxic soup as pollution levels spiked after Diwali

While number of accidents has remained stable, more deaths have been reported

Moderate winds helped improve weather conditions

Combine the inter-marriages with rising pollution, and we have an imminent human health disaster

Particulate matter causing road accidents and eye, throat infections

Twitterati voice concern over usual weather, berate govt

Unusual weather causing health problems, road accidents, flight delays

The social media executive was in the capital ahead of an economic forum

ASL Masks says it turned out more than 100,000 face coverings last year and aims to more than double that in 2016

Restrictions will run until January 15 on trial basis as part of wider drive aimed at reducing pollution levels

2,100 factories in city have been ordered to either stop or scale back production in effort to cut emissions

The red alert, the highest tier of a four-colour warning system, will last until Tuesday

For spectators and even cameramen, the matches have turned at times into a spot the ball contest

Pictures show smog so thick that buildings in Changchun, the capital of Jilin province, were rendered invisible

Through the awareness drive people in FATA are educated about the causes and prevention of HIV/AIDS.