Castle Point is located on the northern side of the Thames Estuary, East of London and has a population of over 86,000, largely living in the main urban areas of Canvey Island, Benfleet, Hadleigh and Thundersley.
The main source of pollution in the Borough is road traffic emissions from major roads, notably the A13, A127 and A130. Castle Point Borough Council has not declared any Air Quality Management Areas (AQMA).
Castle Point monitor nitrogen dioxide using diffusion tubes at 30 monitoring locations around the district.
Annual Status Reports for Castle Point can be found on the Essex Air website
along with further information relating to air quality within Castle Point.