1. What types of respirator would you wear if the benzene concentration in air w

Question

1. What types of respirator would you wear if the benzene concentration in air was 1000?

2. why wouldn't you don a full face piece respirator with organic cartridge base on the question above?

3. (True or False) Benzene vapors, if not trapped in a room, will rise upwards into the air and be swept away by air currents. Explain your answer

4. (True or False) Benzene has the same weight as water and thus will mix with water. Explain your answer

5. If you walk into a part of your unit and smell benzene that means the concentration of benzene in the air is ------------------ or greater

Explanation / Answer

1. OV type respirator should be worn if the benzen concentration is above 1000

2. Because it can be harmful for the eyes and it can also lead to carbon monoxide poisoning.

3. False. Benzene is volatile, it evaporates readily and is highly inlammable. It is 3 times heavier than air, therefore its vapors travel along the ground to an ignition source and cause a fire.

4. Benzene and water do not have same weights. Benzene weight is 78 g/mol and water weight is 18g/mol. Therefore benzene will not mix with water, except a small percentage (0.06% by weight). and if mxed, these two compounds will form two separate layers.

5. If you walk into a part of your unit and smell benzene that means the concentraion of benzene in the air is 1.5 to 4.7 ppm . This is the odor threshold of benzene.

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