AIR POLLUTION Having trouble breathing Oxygen concentrations fall

AIR POLLUTION Having trouble breathing?

Oxygen concentrations fall as altitude increases, so the body has to breathe. Life-Support more to boost the amount of oxygen being carried by haemoglobin in red blood cells. People unused to the thin air can find themselves short l Like water, air is part of our immediate life of breath, a condition called hypoxia which, in extreme -support system. cases, can cause potentially fatal altitude sickness. l We have evolved along with air of a People indigenous to high - some 3. 5 km to and certain quality, andaltitudes we have a capacity higher - have(e. g. adapted to the lower concentrations of adapt Bolivia) oxygen in different ways. Natives of the Andes mountain l We require both have the availability of air (to of range in South America a higher concentration breathe) the of that air to tobe taken haemoglobin in and blood, to quality allow more oxygenate (fuel) our body’s up and carried - compensating for thesystem. lower amount of oxygen in the air.

Like water pollution, air pollution can The “fast-acting” be life-threatening, slow-acting or threats come in the of poison gas rapid. form (man-made or natural). The growth of the chemical industry has increased the potential for this hazard greatly.

“In the early hours of Dec. 3, 1984, gas Examples of Fast-Acting airborne leaked from a tank of methyl isocyanate toxics (MIC) at a plant in Bhopal, India, owned This is St. Pierre in Martinique. In 1902 Mt. and operated by Union Carbide India Pelee blew up sending scalding poison gas Limited (UCIL). There is conclusive evidence down its slope. The entire population of backed by third party investigation that the town, except one man in jail, perished. tragedy was caused by employee sabotage. The state government of Madhya Pradesh in its official documentation of deaths and injuries reported that approximately 3, 800 persons died. ”

Mercifully, now in the past in most places--smog

And the New Threat…

Slow and Relentless (1) l Probably the most important in this category is Global Warming or Changing Chemistry of the Atmosphere, about which we will talk later.

Slow and Relentless (2) poisoning used to be a serious form of air pollution, due to the lead additives in gasoline. Those have been replaced. l Once lead enters the body it is very hard to displace and lodges in the brain. l This is one area where we have made great progress l Lead Caligula, like many of the Claudian emperors, started out well but gradually became more and more bizarre. It is now thought that he was a victim of lead poisoning derived from the water pipes. Breathing lead will due the same thing.

The 3 Methods of Air Pollution carry things along, in suspension as it did in the dust bowl. Now happening with topsoil from West Africa. l Air can carry substances “dissolved” in it, like SO 2, which, when mixed with H 20 becomes mild H 2 SO 4 l It can also carry organisms, such as those causing TB, which spreads through confinement in damp places. l Air

In this scene from Puccini’s “La Boheme, ” Mimi has just died from air pollution

Main Types of Air Pollution l Carbon Monoxide l Sulfur Dioxide l Volatile Organic Compounds l Nitrogen Oxides l Suspended Particulate Matter l Lead

Geography is also important you upwind of air pollution? l Are you living above pollution (e. g. San Francisco? ) l Are you living in a natural “inversion basin? ” (e. g. Los Angeles). l Are

In Olden Times… l Almost all air-pollution problems came via the process of decomposition (organic pollution). In fact many illnesses were blamed on “bad air” that had nothing to do with the air, such as Malaria; which is from the Italian words for Bad Air.

In More Recent Times

Types of Impact l DIRECT: You breathe it—you die, radiation, for instance. This is called Primary Pollution l INDIRECT: The pollutant in the air does not damage you directly, but causes something to happen that does: e. g. SO 2 in the air is a problem to us when it mixes with hydrogen to become sulfuric acid. This is called Secondary Pollution

Biggest Problem? Without doubt, it is CO 2, and we will look at that later. But it is the “leftovers of our everyday lives; one of the prices we pay for consumerism and comfort. ” l We value what we make, or drive, not the side effects, so we say we “externalize” those costs onto someone else. E. g: smoke from a stack blows away and makes some other community sick—no cost to the company there. l

And, Remember the Problem with the Law? l For a long time the law was useless because, under the Law of Torts you had to prove that a specific legal entity caused you specific measurable damage. l With air pollution, this is next to impossible? So, how to we find a policy to control this situation?

EPA Announces Plans to Undo Clean Air Regulation Environmental Protection So what has policy. Agency? done. Many for critics this? are beginning to wonder. l. In Chiefly the Clean Act environment, (and revisions)the has the latest insult Air to the EPA has established standards, monitoring, and penalties. announced its intentions to abandon a longstanding l In other words, the of same as with provision the approach Clean Air Act. water, because they are both, more or less, common property, with all the problems we discussed about that. l We created incentives for firms to clean up their act beyond the level of the Law through tradeable Permits.

The Answer l Is both simple and clever. You take away the idea of personal injury and replace it with a legal standard of air quality. l Thus, for instance, Indianapolis must remain within EPA standards on 12 measurable pollutants in the air. Otherwise, it will be declared Out of Compliance, and no new industry will be allowed in.

And… l To control the regional air quality, all potential polluting establishments in the area are required to obtain permits that specify precisely how much of any pollutant they are allowed to emit. l And this is then monitored, and there are fines for non compliance—for the individual permit holder, and for the Region itself eventually.

So What Happens? l Your central focus now is the “quality of the air” in a defined area, say, Greater Indianapolis. l Permits cannot be issued above the legal level for pollution in the whole area l This is called the “Polluter Pays” principle l Drawback? It requires you to stay within limits, and there is no incentive to do more than that.

Could that Change? l Yes. l Some smart firms realized that cities like Indy were over a barrel because they could not attract new industry—they were at their limit l So these firms said: “If we clean up more, then we will have part of our Permit unused. Now, if we could sell that……. .

Is That It? l Well, it is a big step forward, but the end point of this process is still to have Indianapolis in compliance--just