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Which is more toxic SO2 or CO?

Which is more toxic SO2 or CO?

Sulphur dioxide gas is more poisonous as compared to carbon monoxide. Carbon monoxide prevents the normal transport of oxygen by the blood. This can lead to a significant reduction in the supply of oxygen to the heart, particularly in people suffering from heart disease.

Is co more toxic than CO2?

Carbon monoxide is poisonous because it has the capacity to form a complex with blood as in haemoglobin. And the complex of carbon monoxide with haemoglobin is more stable than the complex of oxygen with haemoglobin.

Which gas is most toxic?

Among the best known toxic gases are carbon monoxide, chlorine, nitrogen dioxide and phosgene….List.

Chemical name Carbon monoxide
NIOSH IDLH in ppm 1,200 (moderately toxic)
OSHA PEL / NIOSH REL / ACGIH TLV ACGIH (1989) TWA TLV 25ppm; NIOSH 35ppm; NIOSH 200ppm Ceiling limit
NFPA 704 Health Rating 3
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Which is more toxic CO or H2S?

Because CO2 itself is toxic at higher concentrations, the high-purity CO2 streams can actu- ally be more hazardous than the H2S and they are the subject of discussion in this article. In such cases, the presence of H2S may actually allow easier detection of the CO2 danger.

Is SO2 a harmful gas?

Sulfur dioxide (SO2), a colorless, bad-smelling, toxic gas, is part of a larger group of chemicals referred to as sulfur oxides (SOx). Sulfur dioxide is also a natural byproduct of volcanic activity. Like nitrogen dioxide, sulfur dioxide can create secondary pollutants once released into the air.

Why is SO2 an air pollutant?

Sulphur dioxide $S{O_2}$ is mainly produced by the incomplete combustion of fossil fuels in automobiles and factories. It is an air pollutant because it has a very harmful effect on the environment as it can create pollutants such as particulate matter, sulfate aerosols and most harmful of this acid rain.

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Why is carbon dioxide better than carbon monoxide?

The key difference between carbon monoxide and carbon dioxide is that carbon monoxide is a fatal gas when not recognized and treated while carbon dioxide is naturally occurring and does not generally pose a threat.

Is an odorless highly poisonous gas?

Glossary: Carbon monoxide (CO) Definition: An odorless, colorless, and highly poisonous gas.

Which gas is not toxic?

Class 2.2 Non-Flammable, Non-Toxic Gases are widely used in a variety of industries — as well as households. Some examples of these gases include: helium. compressed air.

Is H2S gas toxic?

Hydrogen sulfide (also known as H2S, sewer gas, swamp gas, stink damp, and sour damp) is a colorless gas known for its pungent “rotten egg” odor at low concentrations. It is extremely flammable and highly toxic. Hydrogen sulfide also occurs naturally in sewers, manure pits, well water, oil and gas wells, and volcanoes.

What is the difference between H2S and carbon monoxide?

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However, there are significant differences between these molecules, such as in half-lives; CO is more stable and therefore able to have effects distal to the site of production, whereas nitric oxide and H2S are short lived and act only close to sites of production.