Presentation on theme: "Section 2: Air, Noise, and Light Pollution"— Presentation transcript:
1 Section 2: Air, Noise, and Light Pollution Chapter 12: AirSection 2:Air, Noise, and Light Pollution
2 ObjectivesDescribe three possible short-term effects and long-term effects of air pollution on human health.Explain what causes indoor air pollution and how it can be prevented.Describe three human health problems caused by noise pollution.Describe solutions to energy waste caused by light pollution.
3 Air PollutionAir pollution can cause serious health problems, especially for people who are very ______, very ____, or who have heart or ______ problems.
4 Air PollutionAir pollution ____ to the effects of existing diseases such as ________, heart disease, and ______ ________.
5 Air PollutionThe __________ _________ ________ has estimated that Americans pay tens of billions of dollars a year in ______ _____ to treat _________ diseases caused by air pollution.
6 Short-Term Effects of Air Pollution on Health Many of the effects of air pollution on people’s _______ are short-term and ____________ if their exposure to air pollution decreases.
7 Short-Term Effects of Air Pollution on Health The _____ - _____ effects of air pollution on people’s health include headache, ________, irritation to the eyes, nose and _______; coughing; ______ in the _____ ______ and upper respiratory infections, such as ________ and pneumonia.
8 Short-Term Effects of Air Pollution on Health Pollution can also make the conditions of ________ and emphysema ________ for certain individuals.
9 Long-Term Health Effects of Air Pollution _____-_____ effects on health that have been linked to air pollution include emphysema, lung cancer, and heart disease.
10 Long-Term Health Effects of Air Pollution Long-term exposure to air pollution may _______ medical conditions suffered by ______ ______ and may damage the lungs of _______.
11 Indoor Air PollutionThe quality of air inside a ____ or ______ is sometimes ______ than the quality of air _____.
12 Indoor Air Pollution________ and other industrial ________ are major sources of pollution.These compounds can be found in _____, building materials, _______, and furniture, particularly when these items are _____.See your textbook for a chart on indoor pollution.
13 Indoor Air Pollution_____-______ syndrome is a set of symptoms, such as _______, fatigue, eye irritation, and _________, that may affect workers in modern, _____ office buildings.Sick-building syndrome is believed to be caused by _____ ____ ______.
14 Indoor Air PollutionSick-building syndrome is most common in ___ ______ where buildings are tightly sealed to keep out the _____.
15 Indoor Air PollutionIdentifying and removing the sources of indoor air pollution is the most effective way to ________ good indoor quality.__________, or mixing outdoor air with indoor air, is also _______ for good air quality.
16 Indoor Air PollutionWhen activities such as _________ and ________, which cause indoor air pollution, are undertaken, _______ should be _______.
17 Radon Gas Radon gas is ______, tasteless, ______, and radioactive. _______ is one of the elements produced by the decay of __________, a radioactive element that occurs naturally in the Earth’s _______.
18 Radon GasRadon can seep through _____ and _______ in foundations into homes, offices, and schools, where it adheres to ______ _______.
19 Radon GasWhen people inhale the ____, radon enters their ____. In the lungs, radon can _______ the genetic material in cells that line the air passages.Such damage can lead to ________, especially among people who smoke.Radon is the ______-______ cause of lung cancer in the United States.
20 Asbestos________ is any of six ________ minerals that form _______ of minute fibers that are heat resistant, _________, and durable.Asbestos is primarily used as an _______ and as a _____ ___________, and it was used extensively in building materials.
21 AsbestosHowever, for all of its uses, the government banned the use of most asbestos products in the early _____s.That was because exposure to _______ in the ___ is very dangerous.
22 AsbestosAsbestos _____ can ____ and ____ the lungs, causing the disease _________._______ of the disease have more and more difficulty breathing and may eventually die of _____ _______.
23 Noise PollutionA sound of any kind is called a _____. However, some noises are _______ and can cause noise pollution.Health problems that can be caused by noise pollution include loss of hearing, ______ ______ _____, and ______.
24 Noise PollutionNoise can also cause loss of ___, which may lead to _____ productivity at work and in the classroom.
25 Noise PollutionA _______ is the most common unit used to _______ loudness, and is abbreviated ____.
26 Noise PollutionThe quietest sound that a human ___ can hear is represented by __ ___. For each increase in decibel _______, the decibel level is ___ times ______ than the previous level.
27 Noise PollutionA sound of ___ dB is at the threshold of ____. Permanent _______ may come as a result of _____ exposure to sounds over 120 dB.
29 Light PollutionLight pollution does not present a _____ hazard to human health, but it does _______ affect our ________.
30 Light PollutionThe use of _____ ______ in ____ areas is diminishing our view of the _____ ____.In urban areas, the sky is often much ________ than the natural sky.
31 Light PollutionA more important environmental concern of inefficient lighting is ____ ____. Energy is wasted when a light is directed ______ into the night sky and ___ to space. Examples include lighting on billboards, _____-____ ________, and the lighting of building exteriors.
32 Light PollutionSolutions to this problem include shielding light so it is directed downward, using ____ _____ so that light is used only when ______, and using low-pressure sodium sources, which are the most _____-_____ sources of _____.