Smog and Soot
Air
PM2.5
PM10
NO2
SO2
ground-level ozone
carbon monoxide
black carbon
vehicle exhaust
coal power
industry
construction dust
crop residue burning
brick kilns
waste burning
cooking fuels
ventilation
purifiers
AQI scales and why they differ
monitoring networks
low-cost sensors
winter inversion
stubble burning season
haze season
Transboundary haze and the ASEAN agreement
Firework episodes around Diwali and New Year
Dust storms
Odd-even and vehicle restriction schemes
GRAP stages in Delhi and how they trigger
Aviation and airport emissions
Winter heating and biomass burning
Water
Industrial effluent
Untreated sewage
Groundwater contamination
Arsenic and fluoride
River health and BOD
Microplastics
Drinking water safety
Coastal and marine pollution
Treatment plant capacity and non-functioning plants
Bottled and packaged water quality
Irrigation with contaminated water and crop uptake
Algal blooms
Salinity and coastal aquifers
Water quality testing you can request
Waste
Municipal solid waste
Landfill and dumpsite fires
E-waste
Plastic waste and imports
Incineration and waste to energy
Recycling rates and informal recyclers
Construction and demolition waste
Soil & chemicals
lead
cadmium
mercury
Pesticide residue
PFAS
Industrial legacy sites
Mining contamination
Fertiliser runoff
Health & policy
respiratory
cardiovascular
children
life expectancy
WHO guidelines
national ambient standards
Bharat Stage VI
China VI
Euro equivalents
Industrial emission limits and enforcement
Court orders and pollution control boards
Clean air action plans
National Clean Air Programme in India
China's air pollution action plans
Green tribunals and public interest litigation
Compensation claims and liability
Emissions trading pilots
Right to information for pollution data
Occupational exposure limits for workers
News
Reducing your exposure
what N95
KN95 and FFP2 actually filter
Air purifiers and CADR explained
Do it yourself box fan filters
Ventilation and cooking indoors
When closing windows helps and when it does not
Exercising outdoors on a high AQI day
School and workplace closure policies
Car cabin filters and commuting
Reading an AQI number correctly
Indoor plants and why they do not clean the air
Who is responsible
Coal and thermal power plants
Steel, cement and refineries
Brick kilns
Shipping and port emissions
Construction and real estate
Waste contractors and dumpsites
Enforcement actions and penalties
Compliance disclosure and continuous emission monitoring
National Clean Air Programme in India
National Clean Air Programme in India - reporting from Smog and Soot.
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