An introduction to fighting pollution

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An introduction to fighting pollution

The Clean Air Act sets numerical limits on the concentrations of a basic group of air pollutants and provide reporting and enforcement mechanisms. The effects of these laws have been very positive. In the United States between andcitizens enjoyed the following reductions in annual pollution emissions: The scientists unanimously recommended a smog threshold of 60 to 70 ppb after they conducted an extensive review of the evidence.

This is less strict than the scientific recommendation, but is more strict than the current standard. Some industries are lobbying to keep the current standards in place. Environmentalists and public health advocates are mobilizing to support the scientific recommendations.

With it comes up to three-quarters of the black carbon particulate pollution that reaches the West Coast. Federal limits and pollution standards are set by the Clean Air Act. Health effects[ edit ] Due to air pollution causing more than one effect it is hard to attribute a condition only to air pollution or to say how much a given source is responsible.

However, it is believed that at least human deaths are attributable to air pollution and at least a quarter are due to transportation [7].

This compares with the approximate 33 from gun deaths or recent average of 35 from motor vehicle collisions. Which are both also attributable to human technology application.

There are also significant non-human deaths and effects. Asthma[ edit ] As air pollution increases, symptoms of asthma worsen. There are many environmental factors that attribute to asthma. The main sources of environmental pollution are the burning of fossil fuels in the combustion engines, dust generated by traffic on road surfaces, and biomass used for cooking and heating.

In urban areas, there are high concentrations of particulate matter, nitrogen dioxide, ozone, and other volatile organic compounds and can make breathing more difficult. The health effects of particulate matters with different diameters are related to the length of those particles staying in the atmosphere and the locations of infection in the respiratory tract [8] Young children who are exposed to air pollution are extremely vulnerable.

One reason they are more vulnerable is because the average breathing pattern for an adult is 16 to 20 breaths per minute, while a 1-year-old child has a faster breathing pattern which is 20 to 40 breaths per minute. Therefore, children will be inhaling more pollutants than adults.

Many of the mothers exposed to PM2. These phthalates were detected in urine samples from pregnant women. Some of the pollutants studied have been connected to asthma. It has been reported that people who live within 1. Carbon monoxideoxides of nitrogensulfur dioxideozoneleadand particulate matter are also associated with increased hospitalization and mortality due to cardiovascular disease.

Chromosomal damage is high among African American children and their mothers from Oakland, California who are exposed to traffic and regional ozone levels. Also, those who live in the area of lower socioeconomic status have higher risk of cardiovascular diseases caused by PM 2. The prevalence of being exposed to secondhand smoke is higher in African American population and lower income population, especially in those who live below the poverty level.

Inhaled air pollutants damage the respiratory system and can lead to infections or cancer.

An introduction to fighting pollution

Respiratory infections and cancer are related to each other. Having a respiratory infection raise the risk of cancer and vice versa. Infections[ edit ] Even though the mechanistic association between air pollution and infections is still unclear and require further research, [24] some studies shows that the some air pollutants, including secondhand smoking, ozone O 3particulate matter PMand nitrogen dioxide NO 2may cause the infections.

CPSC mentions thattochildren under 18 month are affected by the lower respiratory tract infections which leads to 7, to 15, hospitalizations each year based on the EPA estimation. Exposure to higher level NO2 or long term exposure to low level NO2 also leads to higher risk for infections.

Small, invading organisms in human body, such as bacteriavirusesfungior parasites, can cause infections in the pulmonary system. There are variety of infections because many different organisms can cause the infections.

The prevalence of the bacterial infections is not equally distributed in terms race of and socioeconomic status. In the United States, bacterial pneumonia, caused by Streptococcus pneumoniae bacteria pneumococcus which enters human body usually via inhalation, [27] is significantly associated with morbidity and mortality among adults.

Indoor pollution such as tobacco smoking is responsible to lung cancer. Outdoor air pollution also increases the risk of lung cancer.Cancer: Essentially A Problem of Right and Wrong Fats and Lack of Sunlight? An important introduction to Dr.

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Listen to the conversation again by pressing the Play Audio button and read along with the conversation. Review the Key Vocabulary and the sample sentences. Planet Ark is all about creating positive environmental actions, for everyone – but especially for you. And the easiest way to learn about those actions is to subscribe to one or more of our e-newsletters. MARPOL 73/78 The most important convention regulating and preventing marine pollution by ships is the IMO International Convention for the Prevention of Pollution from Ships, , as modified by the Protocol of relating thereto (MARPOL 73/78).

Greenpeace will never stop fighting for a greener, healthier world for our oceans, forests, food, climate, and democracy—no matter what forces stand in our way. 2 GENERAL The various aspects of possible environmental pollution caused by fires and by fire-fighting agents are shown in figure substances released by a working fire have an influence on.

Introduction Pollution. INTRODUCTION Pollution is the introduction of a contaminant into a natural environment, usually by humans. While most people think of pollution as chemical waste dumped into rivers, or factories spewing toxins into the air, it can also include light pollution or sound are example of pollutions such as air pollution, water pollution and land pollution.

Before the introduction of air quality regulations the use of air pollution control technology was to satisfy the requirements of good engineering practice.

At present the purpose of applying and/or developing a control technology is to meet ambient air quality standards and other source related regulations.

Introduction to Air Pollution - Pollution Control