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Primary schools in Dehli close due to smog

Delhi shuts all primary schools as hazardous smog worsens

Delhi chokes as air pollution turns 'severe'

Pictures from space show mighty smog choking Lahore

The role of weather in air pollution

Clean Air Zone health impact 'encouraging' - study

Jersey businesses snap up electric van funding

Schools close in Lahore as pollution hits record level

Air pollution death settlement is not a win - mum

Millions raised from clean air zone to pay for buses

New air quality plan for city discussed

Worry over toxic Delhi air as pollution worsens

Air pollution alerts to be available in Surrey

City-wide home smoke fines to start in December

New site to monitor air quality in Brighton area

Mayor urged to chase up £370m in unpaid Ulez fines

Motion asks councillors to reject clean air zones

Firms urge mayor to rethink congestion charge plan

Chicken farm row reaches High Court

Residents fear rat run is 'ruining village feel'

TfL income from fines on major routes rises to £89m

Traffic pollution down in first year of Glasgow LEZ

Funding for businesses to reduce carbon emissions