Describe the causes of pollution in cities and comment on the effectiveness of management policies to
Pollution is the contamination of the environment by elements such as noise, car emissions, chemicals, sewage and household waste. There can be many different causes of pollution effecting an area at the same time. Indonesia is one area that is effected by many different types of pollution. Pollution is caused by dust, lead, soot and waste. ... Policies to improve these problems have been implemented. ... Phasing out the use of petrol is reducing lead pollution. ... A major cause of pollution in cities is traffic. ... There are many management policies in place to tackle the problem of traffic pollution. ... There are also policies such as using price mechanisms to discourage driving. ... And in cities such as Manchester and Sheffield new tram systems have been built to provide frequent and reliable commuter services. However some of these policies may not be totally effective, some claim park and ride schemes might encourage fewer people to use public transport as they will choose to park and rise rather than use public transport for the whole journey. ... Mexico City is also suffering pollution. ... There have been a number of schemes to reduce air pollution in Mexico City. ... The River Rhine in Germany had also suffered from a lot of pollution. ... So despite the management policies in place the clean up was not effective due to the fire.