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• Some chemicals on the National Emission Standard for Hazardous Air Pollutants (NESHAPS) chemical list are given below. These are found in section 112 under section 40 of the CAA.

-asbestos

-benzene

-beryllium

-coke oven emissions

-mercury

-vinyl chloride

-inorganic arsenic

-Rn-222

-radionuclides

-copper

-nickel

-phenol

-zinc and zinc oxides

7.3 OCCUPATION SAFETY AND HEALTH ADMINISTRATION (OSHA)

•Workers are often exposed to environments that are hazardous.

•To deal with this it was created by congress in 1970.

•It deals with,

-noise

-indoor air quality

-guards and safety equipment on machines

-worker training and instruction

•The agency helps set policy and police problems.

•One example is the MSDS sheets that must be posted on all chemicals and be on file in public places. This was created under the Worker Right to Know Act.

7.4 PRACTICE PROBLEMS

1. Suggest 10 ways to redesign a car to lessen the life cycle impact it has on the environment.

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ans.	lower weight to reduce fuel consumption
	add emission controls
	use more of the same materials to ease
	sorting
	use removable materials
	use materials that are easy to recycle
	use materials that have been recycled
	make the engine more fuel efficient
	reduce fluids used
	make the vehicle more durable
	etc.

2. Which environmental factors will affect workers.

ans. Most environmental considerations affect the performance of workers. There are different levels of influence. Some are barely noticeable, and have no tangible effects. Others are mild irritants. over long periods of time these can cause mental and physical stress. There are more severe irritants that will lead to discomfort or worse. These will reduce the effectiveness of the employee, to the point where the employee will be unable to work without aids and other support.

3.What factors would need to be considered when measuring noise in a manufacturing plant? ans. Noise levels in a plant are typically measured while the machine is in operation in the

intended environment to obtain the worst case noise level. The noise levels near the machine will be slightly higher because of the direct sound transmission. Noise levels throughout the room will have a basic level based on the reverberant component and the sound absorption in the room.

4.Discuss the two main organizations that deal with environmental issues. Who do they serve? What are their main environmental concerns?