Preventing air pollution
Dark smoke
皇冠体育app darker the smoke, the more polluting it tends to be. Smoke darker than a specified shade of grey is officially classified as 鈥榙ark smoke鈥�.
皇冠体育app is used to define dark smoke. 皇冠体育app chart has 5 shades of grey with 0 being clear and 5 being black. Smoke is considered 鈥榙ark鈥� if it is shade 2 or darker.
Chimney and boiler restrictions
You must not release dark smoke from your premises, including from:
- chimneys serving furnaces
- fixed boilers or industrial plants, whether they鈥檙e attached to buildings or not
皇冠体育appre are some exemptions if emissions will not damage health or cause a nuisance.