NITROGEN DIOXIDE

Most polluted streets for nitrogen dioxide in 2017 (figures in microgrammes per cubic metre) ● Hope Street, Glasgow: 58 ● St John’s Road, Edinburgh: 50 ● Dumbarton Road, Glasgow: 43 ● Seagate, Dundee: 43 ● Lochee Road, Edinburgh: 42 ● Queensferry Road, Edinburgh: 41 The European Ambient Air Quality Directive set a limit for NO2 of 40 microgrammes per cubic metre, with a deadline for compliance of 1 January, 2010.