Senin, 28 Oktober 2013

How do I test for the following pollutants in a lab (Environmental Chemistry)?

carbon monoxide detectors for boats on Kiddie Carbon Monoxide Alarm
carbon monoxide detectors for boats image



beltlessbo


Sulfer Dioxide (SO2)
Carbon Monoxide (CO)
Nitrogen Dioxide (NO2)
Ozone (O3)
Lead and Heavy Metals (Pb, Hg, etc.)
Any other that may pertain to this subject.

Thank you.



Answer
Solids like lead and other heavy metals could obtained by filtering the air particles out of the air. They all form insoluble precipitates with carbonic acid (H2CO3).

Ozone can be determined by its sharp smell if in enough concentrations. In Central Florida it is a common smell in the air after a thunder and lightening storm.

NO2 is a brown gas that is easily seen in concentrations in the distant near the horizon.

SO2 can be determined by bubbling the air though water and testing for increased acidity. It also has a sulfur like smell in concentrations.

CO is the most difficult gas. It is colorless and odorless. It will any animal life that is forced to breath it. There are CO detectors that can be bought. I had one in the cabin of my boat which had an inboard gasoline engine.

All of these gases can be detected by a gas chromatograph in a lab.

How should i be prepared if the following situations occur?




Mike


1. Gas leak in home or building
2. boating accident
3. vehicle trapped in blizzard
4. fire or explosion in a public place
5. violence in a public place

Thank you.



Answer
1. Get a carbon monoxide detector and learn the odor of natural gas.
2. Be sure to have a life vest.
3. Have a 5 x 2 inch diameter candle (2 inches wide, 5 long), matches and a blanket in your car. It will keep you warm enough to live until help can come.
4. Have a cell phone that's charged and working. Otherwise, good luck with that.
5. Same as number four. Also, a good pair of running shoes might be good too.




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