Air pollution in the los angeles

Air pollution is when unwanted chemicals, gasses, and particles enter the air and the atmosphere causing harm to animals and damaging the natural cycles of the Earth. Natural Causes of Air Pollution Some sources of air pollution come from nature.

Air pollution in the los angeles

Prevailing winds transport the compounds, sometimes hundreds of miles, across state and national borders. EPA Average annual pH of rainfall: The pH scale and acid rain: Acid rain is measured using a scale called "pH.

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Pure water has a pH of 7. Normal rain is slightly acidic because carbon dioxide dissolves into it, so it has a pH of about 5.

Air pollution - Wikipedia

As of the yearthe most acidic rain falling in the US has a pH of about 4. Effects of Acid Deposition acidification of lakes and streams Acid rain causes a cascade of effects that harm or kill individual fish, reduce fish population numbers, completely eliminate fish species from a waterbody, and decrease biodiversity.

As acid rain flows through soils in a watershed, aluminum is released from soils into the lakes and streams located in that watershed. Both low pH and increased aluminum levels are directly toxic to fish.

In addition, low Air pollution in the los angeles and increased aluminum levels cause chronic stress that may not kill individual fish, but leads to lower body weight and smaller size and makes fish less able to compete for food and habitat. Generally, the young of most species are more sensitive to environmental conditions than adults.

At pH 5, most fish eggs cannot hatch.

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At lower pH levels, some adult fish die. Some acid lakes have no fish. Instead, it is more likely to weaken trees by damaging their leaves, limiting the nutrients available to them, or exposing them to toxic substances slowly released from the soil.

Quite often, injury or death of trees is a result of these effects of acid rain in combination with one or more additional threats. Acidic water dissolves the nutrients and helpful minerals in the soil and then washes them away before trees and other plants can use them to grow.

At the same time, acid rain causes the release of substances that are toxic to trees and plants, such as aluminum, into the soil. Forests in high mountain regions often are exposed to greater amounts of acid than other forests because they tend to be surrounded by acidic clouds and fog that are more acidic than rainfall.

Scientists believe that when leaves are frequently bathed in this acid fog, essential nutrients in their leaves and needles are stripped away.

This loss of nutrients in their foliage makes trees more susceptible to damage by other environmental factors, particularly cold winter weather. Controlling Acid Deposition Clean up smokestacks and exhaust pipes Almost all electricity comes from burning fossil fuels like coal, natural gas, and oil.

Acid deposition is caused by two pollutants that are released into the atmosphere, or emitted, when these fuels are burned: Coal accounts for most U.

Air pollution in the los angeles

Sulfur is present in coal as an impurity, and it reacts with air when the coal is burned to form SO2. In contrast, NOx is formed when any fossil fuel is burned.

Transport-derived emissions of volatile organic compounds (VOCs) have decreased owing to stricter controls on air pollution. This means that the relative importance of chemicals in pesticides, coatings, printing inks, adhesives, cleaning agents, and personal care products has increased. McDonald et al. show that these volatile chemical products now contribute fully one-half of emitted VOCs in. Dec 31,  · “An estimated rise in water level, due to global warming, of meters may be assumed” for the year life of the Sable gas field project, Mobil engineers wrote in their design specifications. Air pollution occurs when harmful or excessive quantities of substances including gases, particulates, and biological molecules are introduced into Earth's may cause diseases, allergies and even death to humans; it may also cause harm to other living organisms such as animals and food crops, and may damage the natural or built .

Power plants can also switch fuels; for example burning natural gas creates much less SO2 than burning coal. Certain approaches will also have additional benefits of reducing other pollutants such as mercury and carbon dioxide. These devices have been required for over twenty years in the U.

Use alternative energy sources There are other sources of electricity besides fossil fuels. There are also alternative energies available to power automobiles, including natural gas powered vehicles, battery-powered cars, fuel cells, and combinations of alternative and gasoline powered vehicles.

Take action as individuals Individuals can contribute directly by conserving energy, since energy production causes the largest portion of the acid deposition problem.

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For example, you can: Turn off lights, computers, and other appliances when you're not using them Use energy efficient appliances: Keep your thermostat at 68 F in the winter and 72 F in the summer. Carpool, use public transportation, or better yet, walk or bicycle whenever possible Global Warming Some greenhouse gases occur naturally in the atmosphere, while others result from human activities.

Naturally occuring greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Certain human activities, however, add to the levels of most of these naturally occurring gases: CO2 methane emitted during the production and transport of coal, natural gas, and oil.

Methane emissions also result from the decomposition of organic wastes in municipal solid waste landfills, and the raising of livestock.A smoggy sunrise in Los Angeles, Calif., in The state's air quality has improved since then, but is still the worst in the nation, according to the American Lung Association.

This part series highlights women-led ventures in the green economy. Air pollution is one of the leading causes of disease, disaster and devastation. Though other research has shown a link between diabetes and air pollution in the past, this study is one of the largest of its kind, and it’s .

Effects on the Environment Air pollution and the release of gasses into the atmosphere can have many negative effects on the environment.

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Global warming - One type of air pollution is the addition of carbon dioxide gas into the air. Some scientists believe that releasing too much carbon dioxide into the atmosphere is one of the causes of global warming. The effects of air pollution. Pollutants from vehicle exhaust can affect more than just your lungs.

Indeed, tailpipe pollutants pose health risks at every stage of life, and can even cause premature death. But the impacts of climate change, driven by global warming emissions, also affect people's health and the well-being of entire communities. Air pollution occurs when harmful or excessive quantities of substances including gases, particulates, and biological molecules are introduced into Earth's may cause diseases, allergies and even death to humans; it may also cause harm to other living organisms such as animals and food crops, and may damage the natural or built .

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