Health Effects of The Free Element and Hazards
| NFPA 704 |
|---|
| 0 3 0 OX |
Chlorine is a toxic gas that irritates the respiratory system. Because it is heavier than air, it tends to accumulate at the bottom of poorly ventilated spaces. Chlorine gas is a strong oxidizer, which may react with flammable materials.
Chlorine is detectable with measuring devices in concentrations of as low as 0.2 parts per million (ppm), and by smell at 3 ppm. Coughing and vomiting may occur at 30 ppm and lung damage at 60 ppm. About 1000 ppm can be fatal after a few deep breaths of the gas. Breathing lower concentrations can aggravate the respiratory system, and exposure to the gas can irritate the eyes. The toxicity of chlorine comes from its oxidizing power. When chlorine is inhaled at concentrations above 30 ppm, it begins to react with water and cells, which change it into hydrochloric acid (HCl) and hypochlorous acid (HClO).
When used at specified levels for water disinfection, the reaction of chlorine with water is not a major concern for human health. Other materials present in the water may generate disinfection by-products that are associated with negative effects on human health, although the health risk is far lower than drinking undisinfected water.
Read more about this topic: Chlorine
Famous quotes containing the words health, effects, free and/or element:
“To thee, fair Freedom! I retire
From flattery, cards, and dice, and din:
Nor art thou found in mansions higher
Than the low cot, or humble inn.
‘Tis here with boundless pow’r I reign;
And ev’ry health which I begin
Converts dull port to bright champagne;
Such Freedom crowns it, at an inn.”
—William Shenstone (1714–1763)
“Let us learn to live coarsely, dress plainly, and lie hard. The least habit of dominion over the palate has certain good effects not easily estimated.”
—Ralph Waldo Emerson (1803–1882)
“Pleasant it is, when over a great sea the winds trouble the waters, to gaze from shore upon another’s great tribulation; not because any man’s troubles are a delectable joy, but because to perceive you are free of them yourself is pleasant.”
—Lucretius (Titus Lucretius Carus)
“We have a great deal more kindness than is ever spoken. Maugre all the selfishness that chills like east winds the world, the whole human family is bathed with an element of love like a fine ether.”
—Ralph Waldo Emerson (1803–1882)