Air Quality Essay Example for Free

Air Quality Essay1. severalize and describe the nature of this issue, the spatial and ecological dimension? Air quality is a measure of the measure of pollutants emitted into the ambiance and the dispersion potential of an atomic number 18a to dilute those pollutants. It is a massive problem of urban aliment and remains one of the largest environmental concerns. Spatial dimension relates to how course quality differs between places at distinguishable times and under different weather patterns. Increasing population and demand for more goods puts greater obligate on air quality. The human populations interaction with the environment relates to the ecological dimension.In scathe of air quality this relates to the shocks of increased gases and particles associated with transportation, industrial activities, smoking, dust storms from over grazing on marginal land, scouring fires and the burning fossil fuels. Many of these activities cause increases in carbon monoxide, ozon e, 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 farm animal stream crucify its ability to transport oxygen. This in turn causes headaches and tiredness.2. Explain the geographic processes causing the issueHumans argon exposed to a number of pollutants , air toxics and particulate matter in the air we breathe and resist in. A number of organisations have worked on standards that identify those levels that ar safe and those that ar non and how these impact on a humans soundly being. Pollutants are substances which at racy enough levels coffin nail cause harm to people and the environment (including prepares 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 ar ouse suffer severe illness. Nitrogen dioxide Is caused from fuel combustion. The throat and lungs are affected with increased levels in the atmosphere. The burning of fossil fuels and motor vehicle emissions increase carbon monoxide levels. Excessive carbon monoxide levels in the blood stream reduce its ability to transport oxygen. This in turn causes headaches and tiredness. Volatile organic compounds are caused by combustion of fuel, motor vehicles and solvent use. With increased levels of VOCs skin irritation, eye irritation and nausea may be caused. It can also be a crabmeat causing issue. Ozone is formed from nitrogen oxides and hydrocarbons in rejoiced conditions.It is also released by motor vehicles and industry. The tissues of the throat, lungs and eyes may be irritated. Increased lead levels are as a result of exhaust gases from motor vehicles that use leaded petrol, as well as emissions from smelters. In lead it can get into your lungs and go into your blood stream. It c an affect you by shutting passel your nervous system and the body will stop producing blood and you will die. Motor vehicles, burning of plant materials and bush fires increase levels of particles in the atmosphere. Breathing difficulties and respiratory diseases may worsen. Some particles may contain cancer causing agents. Air toxics are pollutants that are also hazardous to humans. Air toxics are hydrocarbons and heavy metals.They are of high concern when emitted close to the source. Examples include at industrial sites and heavily used roads. There is a connection with high levels of air toxics to cancer, birth defects, genetic damage and respiratory and nervous system disorders. Particles are liquids or solids found in the air. They can be natural substances all those from fuel burning processes. The around damaging particle is known as PM10. This is due to the fact it can stay in the atmosphere for long periods and also be carried large distances is has been known to increase death rates in areas of high concentrations.3.Outline some differentiate views of different groups involved in the issue? A major issue associated with air quality is related to traffic congestion. Traffic congestion in Sydney has forced roads to go thermionic vacuum tube in tunnels. Exhaust fumes are then sent above ground via stacks. These stacks are of major concern in the areas where they are located, in particular for the health of humans and animals, as well as the environment. The M5 East tunnel, in particular, has had strong feelings from a number of groups. Originally 3 stacks were to be built on high ground to rid the tunnel of fumes. There were many people against this, so only one 35 metre stack was built without a pollution filter. Some contrasting views are summarised below, from a number of groups Residents against pollution stacks (RAPS)Protest, court cases, inquiries, petitions and letters have been written to function concern about pollution, but little has be en done. This group believes they are unhealthy, expensive to run and that the government is non caring about the publics health and safety.Minister for roads (state parliament 2006) The Minster believes that the publics health is not at risk, because of fresh air is put into the tunnels and air quality levels are always met. He believes standards are constantly monitored and that it is well used by motorists.DR Raymond Kearney- associate professor in dept. of Infectious diseases/Immunology Acess to clean sir is a human need and right. Your lungs me a barrier between the outside world and your body, the tosic substances from the air that is leaving the tunnel and the air that is in side the tunnels reaches your body via the lungs. The burning of petrol, diesel is one of the most toxic sources.