Air pollutant photochemical oxidants include

Air pollutant photochemical oxidants include
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Air pollutant photochemical oxidants include A. nitrous oxide, nitric acid and nitric oxide B. ... aldehydes D. carbon monoxide and sulphur dioxide.
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Air pollutants that produce photochemical oxidants include

Description : Air pollutants that produce photochemical oxidants include

Last Answer : Air pollutants that produce photochemical oxidants include A. `CO_(2)`, CO and `SO_(2)` B. ... nitric acid D. ozone, chlorine and sulphur dioxide.

Which is a secondary air pollutant? (A) Photochemical smog (B) Sulphur dioxide (C) Nitrogen dioxide (D) Dust particles

Description : Which is a secondary air pollutant? (A) Photochemical smog (B) Sulphur dioxide (C) Nitrogen dioxide (D) Dust particles

Last Answer : (A) Photochemical smog

Which of the following is not a secondary air pollutant? (A) Ozone (B) Photochemical smog (C) Sulphur dioxide (D) All (A), (B) & (C)

Description : Which of the following is not a secondary air pollutant? (A) Ozone (B) Photochemical smog (C) Sulphur dioxide (D) All (A), (B) & (C)

Last Answer : (C) Sulphur dioxide

Which of the following is a secondary air pollutant? (A) Photochemical smog (B) Sulphur dioxide (C) Nitrogen dioxide (D) Dust particles

Description : Which of the following is a secondary air pollutant? (A) Photochemical smog (B) Sulphur dioxide (C) Nitrogen dioxide (D) Dust particles

Last Answer : (A) Photochemical smog

Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the (A) Industrial chimney exhaust (B) Automobiles exhaust (C) Photochemical reaction in polluted atmosphere (D) Burning of domestic fuel

Description : Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the (A) Industrial chimney exhaust (B) Automobiles exhaust (C) Photochemical reaction in polluted atmosphere (D) Burning of domestic fuel

Last Answer : (B) Automobiles exhaust

Which of the following statements are true of oxidants? A. In addition to their pathophysiologic roles in inflammation, injury, and infection, oxidants also have physiologic roles. B. Oxidants may be generated from activated neutrophils and during reperfusion following a period of ischemia. C. The deleterious effects of oxidants include lipid peroxidation and cell membrane damage, oxidative damage to DNA, and inhibition of adenosine triphosphate (ATP) synthesis. D. The mechanism of ischemia-reperfusion injury involved the catalytic production of superoxide anion (O 2•) by the enzyme xanthine oxidase.

Description : Which of the following statements are true of oxidants? A. In addition to their pathophysiologic roles in inflammation, injury, and infection, oxidants also have physiologic roles. B. Oxidants may ... involved the catalytic production of superoxide anion (O 2 ) by the enzyme xanthine oxidase.

Last Answer : Answer: ABCD DISCUSSION: Oxidants are reactive oxygen metabolites that have both physiologic and pathophysiologic roles. As potent oxidizing agents, oxidants are involved in cytochrome P ... leukocyte infiltration and activation, causing further tissue damage by the release of cytotoxic proteases

Direct reaction of unsaturated hydrocarbons with either NO or NO2 produces an eye irritating pollutant compound known as (A) Photochemical smog (B) Peroxyacetyl nitrate (PAN) or methyl nitrite (C) Benzopyrene (D) Polyacrylonitrile

Description : Direct reaction of unsaturated hydrocarbons with either NO or NO2 produces an eye irritating pollutant compound known as (A) Photochemical smog (B) Peroxyacetyl nitrate (PAN) or methyl nitrite (C) Benzopyrene (D) Polyacrylonitrile

Last Answer : (B) Peroxyacetyl nitrate (PAN) or methyl nitrite

In which year Air (Prevention and Control of Pollution) Act was amended to include noise as an air pollutant?

Description : In which year Air (Prevention and Control of Pollution) Act was amended to include noise as an air pollutant?

Last Answer : In which year Air (Prevention and Control of Pollution) Act was amended to include noise as an air pollutant? A. 1972 B. 1981 C. 1987 D. 1990

In which year Air (Prevention and Control of Pollution) Act was amended to include noise as an air pollutant?

Description : In which year Air (Prevention and Control of Pollution) Act was amended to include noise as an air pollutant?

Last Answer : In which year Air (Prevention and Control of Pollution) Act was amended to include noise as an air pollutant ... . Noise C. Water D. None of the above

What are the properties of oxidants ?

Description : What are the properties of oxidants ?

Last Answer : The properties of oxidants are given below: They cause oxidation. They receive one or more electrons. Self-annihilation occurs. The oxidation number of the corresponding atoms decreases.

Answer: a, b, c, d Free oxygen radicals are chemical species that are intermediates in the normal process of cellular respiration. Oxidants that are free radicals have been implicated as initiators of reactions which lead to a variety of cellular injuries. Oxidants are derived from several sources, notably phagocytes. Among the effects of oxygen free radicals are membrane lipid peroxidation, DNA strand breaks, cytoskeletal disassembly and inhibition of glucose metabolism leading to decreased cellular ATP concentrations. (Figure 6-16) 187 Which of the following acute-phase protein levels are increased in human plasma following acute inflammation? a. C-reactive protein b. Serum amyloid c. a -Proteinase inhibitor d. Fibrinogen e. Albumin

Description : Answer: a, b, c, d Free oxygen radicals are chemical species that are intermediates in the normal process of cellular respiration. Oxidants that are free radicals have been implicated as initiators of ... a. C-reactive protein b. Serum amyloid c. a -Proteinase inhibitor d. Fibrinogen e. Albumin

Last Answer : Answer: a, b, c, d The acute-phase response is a series of homeostatic responses of the organism to tissue injury in infection and inflammation. After an inflammatory stimulus occurs, a number ... 30% to 50% of the level before injury. The reason for the decrease in production is poorly understood

Which of the following statements regarding neutrophils are true? a. The neutrophil undergoes final maturation after release into the circulation b. Patients with chronic granulomatous disease have a defective neutrophil H-oxidase system c. Neutrophil killing of bacteria is achieved by oxidants, proteinases and cationic proteins d. The normal human neutrophil circulates in the blood for 7–10 days

Description : Which of the following statements regarding neutrophils are true? a. The neutrophil undergoes final maturation after release into the circulation b. Patients with chronic granulomatous disease have a defective ... proteins d. The normal human neutrophil circulates in the blood for 7-10 days

Last Answer : Answer: b, c The neutrophil is a migratory phagocytic cell that defends the host against bacteria and eliminates necrotic tissue. The neutrophil matures in the bone marrow and is ... phagocytose bacteria, they are unable to kill the intracellular microbes and chronic, unresolved infections result

The term 'brown air' is used for – (1) Acid fumes (2) Photochemical smog (3) Sulphurous smog (4) Industrial smog

Description : The term 'brown air' is used for – (1) Acid fumes (2) Photochemical smog (3) Sulphurous smog (4) Industrial smog

Last Answer : (2) Photochemical smog Explanation: Photochemical smog which is mainly composed of ozone (O3), Peroxyacetyl nitrate (PAN) and No., is also known as brown air where solar radiation is intense. In ... solar radiation or areas, smog formation is incomplete and the air is referred to as grey air.

Particulate' air pollutants are finely divided solids and liquids. Which of the following is not a ‘particulate’? (A) Dust & mists(B) Smoke & fumes(C) Photochemical smog & soot(D) None of these

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Last Answer : (D) None of these

Which of the following sources is responsible for maximum air pollution? (A) Industrial chimney exhaust (B) Forest fire (C) Automobiles exhaust (D) Photochemical oxidation of organic matter

Description : Which of the following sources is responsible for maximum air pollution? (A) Industrial chimney exhaust (B) Forest fire (C) Automobiles exhaust (D) Photochemical oxidation of organic matter

Last Answer : (C) Automobiles exhaust

Which of the following is not a natural source of air pollution? (A) Volcanic eruptions and lightening discharges (B) Biological decay of vegetable matter (C) Photochemical oxidation of organic matter (D) None of these

Description : Which of the following is not a natural source of air pollution? (A) Volcanic eruptions and lightening discharges (B) Biological decay of vegetable matter (C) Photochemical oxidation of organic matter (D) None of these

Last Answer : (D) None of these

The term ‘brown air’ is used for (1) Acid fumes (2) Photochemical smog (3) Sulphurous smog (4) Industrial smog

Description : The term ‘brown air’ is used for (1) Acid fumes (2) Photochemical smog (3) Sulphurous smog (4) Industrial smog

Last Answer : Photochemical smog

‘Methane is an air pollutant that causes Greenhouse effect.’ Name three sources of this gas. -Geography

Description : ‘Methane is an air pollutant that causes Greenhouse effect.’ Name three sources of this gas. -Geography

Last Answer : • Mining • Landfills • Wet lands

Which air pollutant affect the nervous system of man? -General Knowledge

Description : Which air pollutant affect the nervous system of man? -General Knowledge

Last Answer : The answer is 'Lead'

Which air pollutant affect the nervous system of man? -General Knowledge

Description : Which air pollutant affect the nervous system of man? -General Knowledge

Last Answer : answer:

Which air pollutant affect the nervous system of man? -General Knowledge

Description : Which air pollutant affect the nervous system of man? -General Knowledge

Last Answer : answer:

Which of the following statements are correct ? (i) Benzene hexachloride (BHC) is a non-biodegradable pollutant. (ii) Anthropogenic air pollutants are

Description : Which of the following statements are correct ? (i) Benzene hexachloride (BHC) is a non-biodegradable pollutant. (ii) Anthropogenic air pollutants are

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Chief air pollutant which is likely to deplete ozone layer is

Description : Chief air pollutant which is likely to deplete ozone layer is

Last Answer : Chief air pollutant which is likely to deplete ozone layer is A. sulphur dioxide B. carbon ... . carbon monoxides D. nitrogen oxides and fluorocarbons

The most harmful air pollutant produced by automobiles is

Description : The most harmful air pollutant produced by automobiles is

Last Answer : The most harmful air pollutant produced by automobiles is A. `HNO_(2)` B. NO C. `SO_(2)` D. CO

Which is the greatest air pollutant these days?

Description : Which is the greatest air pollutant these days?

Last Answer : Which is the greatest air pollutant these days? A. Factories B. Motor vehicles C. Domestic appliances D. Animals

Major air pollutant is

Description : Major air pollutant is

Last Answer : Major air pollutant is A. `CO_(2)` B. `N_(2)` C. CO D. S

The most serious air pollutant causing health hazard is – (1) Sulphur dioxide (2) Carbon monoxide (3) Ozone (4) Nitrogen oxide

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Last Answer : (1) Sulphur dioxide Explanation: Sulphur dioxide (SO2) is considered as the most serious single air pollutant causing health hazard, obstructing breathing. It always leads to airways inflammation, ... , pulmonary oedema, heart failure and circulatory collapse. It is also responsible for acid rain.

Which of the following range of Air Pollutant Index is considered as hazardous? (1) 301-500 (2) 201-300 (3) 101-200 (4) 401-500

Description : Which of the following range of Air Pollutant Index is considered as hazardous? (1) 301-500 (2) 201-300 (3) 101-200 (4) 401-500

Last Answer : (1) 301-500 Explanation: An Air Quality Index (AQI) of 301-500 is considered as hazardous to human health. It denotes the severely polluted state of air. AQI values over 300 trigger ... of emergency conditions. The entire population is even more likely to be affected by serious health effects.

‘Aerosol’ is - (1) Suspended solid particles in air (2) Pollutant gas, present in air (3) (8) Microbes, present in air (4) Green house gas present in air

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Last Answer : (1) Suspended solid particles in air

Which of the following auto mobile gases is not considered to be an air pollutant? (1) Carbon dioxide (2) Carbon monoxide (3) Sulfur dioxide (4) Nitrogen dioxide

Description : Which of the following auto mobile gases is not considered to be an air pollutant? (1) Carbon dioxide (2) Carbon monoxide (3) Sulfur dioxide (4) Nitrogen dioxide

Last Answer : (1) Carbon dioxide Explanation: There are mainly six air pollutants: carbon monoxide lead, ground-level ozone, nitrogen dioxide, particulate matter, and sulfur dioxide.

Which of the following is usually not an air-pollutant? (1) Hydrocarbons (2) Sulphur dioxide (3) Carbon dioxide (4) Nitrous oxide

Description : Which of the following is usually not an air-pollutant? (1) Hydrocarbons (2) Sulphur dioxide (3) Carbon dioxide (4) Nitrous oxide

Last Answer : (4) Nitrous oxide Explanation: The six air pollutants are carbon monoxide, lead, ground-level ozone, nitrogen dioxide, particulate matter, and sulfur dioxide. The combustion of gasoline and other ... as laughing gas, is used in surgery and dentistry for its an-aesthetic and analgesic effects.

Which of the following is not a gaseous air pollutant? (1) Oxides of nitrogen (2) Hydrocarbon (3) Smoke (4) Oxides of sulphur

Description : Which of the following is not a gaseous air pollutant? (1) Oxides of nitrogen (2) Hydrocarbon (3) Smoke (4) Oxides of sulphur

Last Answer : (2) Hydrocarbon Explanation: The gaseous air pollutants of primary concern in urban settings include sulfur dioxide, nitrogen dioxide, and carbon monoxide; these are emitted directly into the air ... is also a pollutant. Hydrocarbon is an organic compound consisting entirely of hydrogen and carbon.

An example of major air pollutant is – (1) Oxygen (2) Carbon monoxide (3) Helium (4) Carbon dioxide

Description : An example of major air pollutant is – (1) Oxygen (2) Carbon monoxide (3) Helium (4) Carbon dioxide

Last Answer : (2) Carbon monoxide Explanation: Carbon monoxide (CO) is a colourless, odorless, non-irritating but very poisonous gas which is a product by incomplete combustion of fuel such as natural gas, coal or wood. Vehicular exhaust is a major source of carbon monoxide.

Air Quality Index is - (1) an air pollutant measuring machine (2) a measuring scale to show quality of air (3) used for measuring humidity level (4) used for forecasting rain

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Last Answer : (2) a measuring scale to show quality of air Explanation: The AQI is an index for reporting daily air quality. It tells us how clean or polluted our air is, and what associated health effects might be a concern for us.

Which one of the following gases is most significant as air pollutant? A. Carbondioxide B. Oxygen C. Nitrogen D. Sulphur-dioxide

Description : Which one of the following gases is most significant as air pollutant? A. Carbondioxide B. Oxygen C. Nitrogen D. Sulphur-dioxide

Last Answer : ANS: D

Fine organic or inorganic particles suspended in air is called --------? A. particulate pollutant B. gaseous pollutant C. aerosol (Answer) D. none of these

Description : Fine organic or inorganic particles suspended in air is called --------? A. particulate pollutant B. gaseous pollutant C. aerosol (Answer) D. none of these

Last Answer : C. aerosol (Answer)

The main industrial source of emission of hydrogen sulphide air pollutant is (A) Petroleum refineries (B) Coal based thermal power plants (C) Pulp and paper plant (D) Metallurgical roasting & smelting plant

Description : The main industrial source of emission of hydrogen sulphide air pollutant is (A) Petroleum refineries (B) Coal based thermal power plants (C) Pulp and paper plant (D) Metallurgical roasting & smelting plant

Last Answer : (B) Coal based thermal power plants

Which of the following is the most severe air pollutant? (A) Hydrocarbons (B) NOx (C) SO2 (D) CO

Description : Which of the following is the most severe air pollutant? (A) Hydrocarbons (B) NOx (C) SO2 (D) CO

Last Answer : (B) NOx

Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes (A) Paralysis of muscles & loss of appetite (B) Nervous depression (C) Gastritis and diarrhea (D) All (A), (B) and (C)

Description : Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes (A) Paralysis of muscles & loss of appetite (B) Nervous depression (C) Gastritis and diarrhea (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

__________ plant emits large amount of SO2 as an air pollutant. (A) Nitric acid (B) Sulphuric acid (C) Chlor alkali (D) Iron & steel

Description : __________ plant emits large amount of SO2 as an air pollutant. (A) Nitric acid (B) Sulphuric acid (C) Chlor alkali (D) Iron & steel

Last Answer : (B) Sulphuric acid

Which of the following is not an air pollutant ? A. Smoke B. Carbon Dioxide C. Nitrogen Gas D. Sulphur Dioxide

Description : Which of the following is not an air pollutant ? A. Smoke B. Carbon Dioxide C. Nitrogen Gas D. Sulphur Dioxide

Last Answer : C. Nitrogen Gas

Which of the following is a primary pollutant in atmospheric air? A. Cl2 B. SO3 C. Nitrates D. Sulphates

Description : Which of the following is a primary pollutant in atmospheric air? A. Cl2 B. SO3 C. Nitrates D. Sulphates

Last Answer : A. Cl2

Chief air pollutant which is likely to deplete ozone layer is a) Sulphur dioxide b) Carbon dioxide c) Carbon monoxide d) Nitrogen oxides and Fluorocarbons.

Description : Chief air pollutant which is likely to deplete ozone layer is a) Sulphur dioxide b) Carbon dioxide c) Carbon monoxide d) Nitrogen oxides and Fluorocarbons.

Last Answer : d) Nitrogen oxides and Fluorocarbons

The U.S. EPA recently concluded that environmental tobacco smoke should be considered (quote) w) "a possible human teratogen" x) "a priority air pollutant" y) "a known human carcinogen" z) "a possible human carcinogen"

Description : The U.S. EPA recently concluded that environmental tobacco smoke should be considered (quote) w) "a possible human teratogen" x) "a priority air pollutant" y) "a known human carcinogen" z) "a possible human carcinogen" 

Last Answer : ANSWER: Y -- A KNOWN HUMAN CARCINOGEN 

Identify the air pollutant in urban areas which irritates eyes and also respiratory tract of human beings. (A) Particulate matter (B) Oxides of nitrogen (C) Surface ozone (D) Carbon monoxide

Description : Identify the air pollutant in urban areas which irritates eyes and also respiratory tract of human beings. (A) Particulate matter (B) Oxides of nitrogen (C) Surface ozone (D) Carbon monoxide

Last Answer : (C) Surface ozone

Which of the following is a source of emissions leading to the eventual formation of surface ozone as a pollutant? (A) Transport sector (B) Refrigeration and Air conditioning (C) Wetlands (D) Fertilizers

Description : Which of the following is a source of emissions leading to the eventual formation of surface ozone as a pollutant? (A) Transport sector (B) Refrigeration and Air conditioning (C) Wetlands (D) Fertilizers

Last Answer : (A) Transport sector 

The most serious air pollutant causing health hazard is (1) Sulphur dioxide (2) Carbon monoxide (3) Ozone (4) Nitrogen oxide

Description : The most serious air pollutant causing health hazard is (1) Sulphur dioxide (2) Carbon monoxide (3) Ozone (4) Nitrogen oxide

Last Answer : Sulphur dioxide

Which of the following range of Air Pollutant Index is considered as hazardous ? (1) 301-500 (2) 201-300 (3) 101-200 (4) 401-500

Description : Which of the following range of Air Pollutant Index is considered as hazardous ? (1) 301-500 (2) 201-300 (3) 101-200 (4) 401-500

Last Answer : 301-500

Which of the following is usually not an air-pollutant? (1) Hydrocarbons (2) Sulphur dioxide (3) Carbon dioxide (4) Nitrous oxide

Description : Which of the following is usually not an air-pollutant? (1) Hydrocarbons (2) Sulphur dioxide (3) Carbon dioxide (4) Nitrous oxide

Last Answer :  Nitrous oxide

Which of the following is not a gaseous air pollutant? (1) Oxides of nitrogen (2) Hydrocarbon (3) Smoke (4) Oxides of sulphur

Description : Which of the following is not a gaseous air pollutant? (1) Oxides of nitrogen (2) Hydrocarbon (3) Smoke (4) Oxides of sulphur

Last Answer : Hydrocarbon