Expanding Heathrow will increase local levels of nitrogen oxide (NOx) pollution

The Government says that the proposals won’t lead to increased levels of local air pollution. But levels of nitrous oxide are already breaking EU regulations. The Environment Agency has added its weight to the growing criticism of the proposed expansion of Heathrow airport by saying the government has failed to prove that plans for a third runway will not breach EU rules on air pollution. The agency also warned that the dramatic increase in the number of flights could also increase mortality rates across the South-East(14).

(14)http://tinyurl.com/5muon$1 
(14)http://tinyurl.com/5muon2