Trading NOx in the North-east USA
Controlling ozone raises thorny issues. Daniel Chartier examines the US ‘cap and trade’ approach to the problem.
The problem of ozone in the Northeastern US has been a persistent one. Throughout the North-eastern and Mid-Atlantic US the federal National Ambient Air Quality Standard (NAAQS) for ground level ozone is exceeded repeatedly each summer. Despite attempts to deal with the ozone issue on a state-by-state basis the problem persists. Recognising the unique challenge presented by ozone formation and transport,Congress set up the Ozone Transport Commission (OTC) in 1990 as part of the Clean Air Act Amendments.