Water Pollution Since 1951 governments in the UK
different approach, the imposition of pollution standards that regulate the maximum amount of allowed pollution. Air Pollution Since the Clean Air Act of 1956 governments in the UK have taken responsibility for designating clean air zones in which certain types of pollution, notably the smoke caused by burning coal, are illegal. The number of designated clean air zones has increased steadily during the last 25 years, and Table 15-1 shows the dramatic reduction in smoke pollution in the UK. Adding lead to petrol improves the fuel economy performance of cars. However, lead emissions from car exhausts are an atmospheric pollutant that may be harmful to people's health. Since 1972 the UK government has adopted a policy of progressive reductions in the quantity of lead permitted in petrol. Table 15-2 shows that lead emission from petrol-engined vehicles has fallen since 1973 even though total consumption of petrol has risen by 20 per cent. Water Pollution Since 1951 governments in the UK have imposed increasingly stringent controls on discharges into inland waters. Although we tend to think of industrial effluent, sewage is a more
www.corporateeventsalgarve.com