Air Quality - 1

Topics: Smog, Air pollution, Oxygen Pages: 4 (1412 words) Published: October 8, 2012
1. Identify and describe the nature of this issue, the spatial and ecological dimension? Air quality is a measure of the amount of pollutants emitted into the atmosphere and the dispersion potential of an area to dilute those pollutants. It is a massive problem of urban living and remains one of the largest environmental concerns. Spatial dimension relates to how air quality differs between places at different times and under different weather patterns. Increasing population and demand for more goods puts greater pressure on air quality. The human population’s interaction with the environment relates to the ecological dimension. In terms of air quality this relates to the impacts of increased gases and particles associated with transportation, industrial activities, smoking, dust storms from over grazing on marginal land, bush fires and the burning fossil fuels . Many of these activities cause increases in carbon monoxide, ozone, sulphur dioxide, nitrogen dioxide, lead and particles in the atmosphere. People get health problems due to these increases. For example, excessive carbon monoxide levels in the blood stream reduce its ability to transport oxygen. This in turn causes headaches and tiredness.

2. explain the geographic processes causing the issue

Humans are exposed to a number of pollutants , air toxics and particulate matter in the air we breathe and live in. A number of organisations have worked on standards that identify those levels that are safe and those that are not and how these impact on a human’s well being. Pollutants are substances which at high enough levels can cause harm to people and the environment (including plants and animals). Things like sulphur dioxide is from coal, oil burning power stations, mineral ore processing and chemical manufacture. With Sulfur dioxide health issues like the throat and lungs are attacked. People with breathing problems can suffer severe illness. Nitrogen dioxide Is caused from fuel combustion. The...
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