# data[].attributes.body
NO2 or nitrogen dioxide is mainly by car emission (cars, trucks,buses,etc)

# data[].attributes.body
SO2 or sulfur dioxide is mostly erated by industrial factories and power plants

# data[].attributes.body
CO or carbon monoxide can mostly be emmited by motor vehicle exhaust from cars, trucks,etc.

# data[].attributes.body
VOCs or Volatile irganic compounds are mainly emmited by paints,glues,lacquers, permanent markers, cleaning suplies, etc.

# data[].attributes.body
PM or particulate matter can be caused by forest fires, dusty industries, gases emited by power plants or industial factoies.