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What is produced during the formation of photochemical smog?

What is produced during the formation of photochemical smog?

Notes: During the photochemical smog NO and O3 both are produced but major production is of nitrogen oxide (NO) and NO2. The components of automobile exhaust are particularly important in the formation of atmospheric ozone and are the primary contributors to Los Angeles smog.

What is photochemical smog what is it composed of and how is it formed?

Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities. It tends to occur more often in summer, because that is when we have the most sunlight.

What is present in photochemical smog?

Photochemical smog, often referred to as “summer smog”, is the chemical reaction of sunlight, nitrogen oxides and volatile organic compounds in the atmosphere, which leaves airborne particles and ground-level ozone. The relevant secondary pollutants include peroxylacyl nitrates (PAN), tropospheric ozone, and aldehydes.

How does photochemical smog affect humans?

Even short-term exposure to photochemical smog tends to have ill effects on both the young and the elderly. It causes painful irritation of the respiratory system, reduced lung function and difficulty breathing; this is more evident while exercising or working outdoors.

Which is not photochemical smog?

Solution : Photochemical smog contains RCHO,RCOR,PAN and O3,CF2Cl2 cause depletion of ozone layer and is not responsible for photochemical smog.

Which of the following agents is responsible for turning the Taj Mahal?

These pollutants – sulphur dioxide, nitrogen dioxide and mainly carbon-based particulates – have steadily weathered and eroded the Taj’s brilliant white facade, giving it a yellow sheen.

What precautions will be taken to survive when ozone is high?

Because the inhaled volume of air (and thus also the amount of ozone) is up to 20 times larger during physical activity, it is advised to avoid outdoors physical activity (f.e. running) between 12am and 8pm.

Which of the following is involved in production of carboxy Haemoglobin?

Description. Carboxyhemoglobin (COHb) is a stable complex of carbon monoxide that forms in red blood cells when carbon monoxide is inhaled. It is produced from hepatic metabolism of methylene chloride or as a byproduct in the process of hemoglobin degradation.

Which of the following is involved in production of carboxy Haemoglobin co so2 no2 no3?

Which of the following is involved in production of carboxy haemoglobin? Explanation: CO + Blood ——> Carboxy haemoglobin (Pink color).

What will happen if CO combines with Haemoglobin?

Haemoglobin by combining with carbon monoxide lead to the death of the individual due to suffocation. The capillaries of circulatory system deliver the oxygen rich blood to the tissues of the body. This oxygen diffuses across the walls of the capillaries into tissues.

Does carbon monoxide bind irreversibly to hemoglobin?

Affinity of Hb for CO Hemoglobin contains four heme groups each capable of reversibly binding to one oxygen molecule. Carbon monoxide binds to hemoglobin at the same sites as oxygen, but approximately 210 times more tightly.

Is CO binding reversible?

The binding of carbon monoxide is fully reversible for 2 and 3 and can be repeated over multiple cycles.

Why CO is toxic to health?

Carbon monoxide is harmful when breathed because it displaces oxygen in the blood and deprives the heart, brain and other vital organs of oxygen. Large amounts of CO can overcome you in minutes without warning — causing you to lose consciousness and suffocate.

Why does co bind so well to hemoglobin?

Oxygen binds to the iron atoms in the protein whereas carbon dioxide CO2 is bound to the protein chains of the structure. It has a greater affinity for hemoglobin than oxygen does. It displaces oxygen and quickly binds, so very little oxygen is transported through the body cells.

Why does CO affect ATP production?

CO in the dark, a specific inhibitor of respiration, was used to inhibit ATP synthesis. Coincident with this decrease was a decrease in the rate of mitosis which stops completely when the ATP drops below 50 per cent of the normal level.

How does pH affect oxygen-binding to hemoglobin?

Oxygen Transport As blood nears the lungs, the carbon dioxide concentration decreases, causing an increase in pH. This increase in pH increases hemoglobin’s affinity for oxygen through the Bohr effect, causing hemoglobin to pick up oxygen entering your blood from your lungs so it can transport it to your tissues.