A secondary irritant atmosphere is

Irritant gas inhalation injury is the result of gases that, when inhaled, dissolve in the water of the respiratory tract mucosa and cause an inflammatory response. Symptoms depend on which gas or chemical is inhaled and how deeply and for how long it was inhaled. Symptoms may include irritation of the eyes or nose, cough, blood in the sputum ...

The atmosphere in a harmless looking tunnel can be searingly hot. Workers who enter these con- fined spaces must follow detailed safety procedures to ...Purpose and scope.This section covers areas in which the employer is aware that a hazardous atmosphere or substance may exist, except where one or more of the following sections apply: §1917.22 Hazardous cargo; §1917.24 Carbon monoxide; §1917.25 Fumigants, pesticides, insecticides and hazardous preservatives; §1917.73 Terminal …NOx + H2O vapour HNO3 2.3. Major sources of air pollutants. a) Natural source – Pollutants emitted in the atmosphere through natural source. For example, dust from land with little or no vegetation; vegetation emits volatile organic carbons (VOCs) such as isoprene,smoke and carbon mono oxide (CO) from wildfires; volcanic activity produces sulfur, chlorine … an oxygen-deficient atmosphere is an atmosphere that contains less than __%. 19.5. a flammable atmosphere is an atmosphere with a concetration of flammable vaors at or above ___%. 10. a ___ substance is a material that is poisonos. toxic. a ___ irritant atmosphere is an atmosphere that harms only the parts of the body that it touches and does ... Objective. TO 1.0. Achieve a minimum score of 70% on the final course assessment. LO 1.1.1. List and describe the criteria for non-permit required confined spaces and permit required confined spaces, and discuss the hazards associated with each category of confined space. LO 1.2.1. C C Persons exposed only to nitrogen oxide gases do not pose substantial secondary contamination risks. Persons whose clothing is contaminated with liquid nitrogen oxides can secondarily contaminate others by direct contact or through off-gassing vapors. C C Nitric oxide and nitrogen dioxide are nonflammable liquids or gases; however, theySulfur dioxide (SO2), a colorless and non flammable gas with a strong and gross odor. Sulfur trioxide (SO3), forms when sulfur dioxide reacts with oxygen in the air. Hydrocarbons. diverse group of organic compounds that contain only hydrogen and carbon, the simplest is methane (CH4) which is a natural gas. Ozone: a pale blue gas that is both ...A secondary irritant atmosphere is: Choose matching definition. One that may produce toxic effects on the body. a) Sewer c) Storage Tank A and C.

A condition in which a layer of warm air traps polluted air close to Earth's surface. Sulfur oxides and nitrogen oxides, emitted by burning fossil fuels, enter the atmosphere-where they combine with oxygen and water to form sulfuric acid and nitric acid-and return to Earth's surface. Study with Quizlet and memorize flashcards containing terms ...PPM calculations basics. -Calculation based on volumes. -volume of gas or vapor contaminant, and volume of air in room or collected by sampling device. Pressure used for saturation point. -Vapor pressure of chemical and atmospheric pressure. General PPM equation. ppm= (Vgas/Vair)*10^6. Room volume calculation. -Air volume : Work area …Apr 29, 2023 · Secondary gaseous pollutants represented by ozone and secondary particulate matter, including sulfates, nitrates, ammonium salts, and secondary organic aerosols, are formed in the atmosphere, affecting air quality and human health. This paper summarizes the formation pathways and mechanisms of important atmospheric secondary pollutants. Feb 15, 2024 ... ... atmosphere; contains material that has the potential to engulf an entrant; has walls that converge inward or floors that slope downward and ...Terms in this set (23) primary air pollutant. pollutants that are produced by humans and nature. secondary air pollutant. air pollutants formed when primary air pollutants react with one another or with other chemicals in the air. particulate matter. Small particles or liquid droplets suspended in midair; considered an atmospheric pollutant.NOx + H2O vapour HNO3 2.3. Major sources of air pollutants. a) Natural source – Pollutants emitted in the atmosphere through natural source. For example, dust from land with little or no vegetation; vegetation emits volatile organic carbons (VOCs) such as isoprene,smoke and carbon mono oxide (CO) from wildfires; volcanic activity produces sulfur, chlorine …A substance that is released into the atmosphere; the cause of air pollutionMatch. Study with Quizlet and memorize flashcards containing terms like Which of the following is a secondary air pollutant?, Air pollution is best defined as ________, A temperature inversion can adversely affect air quality and is characterized by _______ and more.

A substance that is released into the atmosphere; the cause of air pollution. Fossil Fuel. A carbon-containing fuel formed over millions of years from the remains of living things. ... Secondary Air Pollutant. A harmful substance produced when a primary pollutant reacts with other substances.Air Pollution. Get a hint. Ground level ozone (tropospheric ozone) Click the card to flip 👆. O3. Secondary pollutant, formed with photochemical smog when NOx and VOC's react with UV rays. harmful eye and lung irritant. Acts as a powerful greenhouse gas in the troposphere. Click the card to flip 👆. EXAM 2 Factors Affecting Enzyme Activity. 19 terms. CleGoMushAnna. Preview. Study with Quizlet and memorize flashcards containing terms like what is a secondary pollutant in the troposphere but beneficial in the stratosphere, secondary air pollutants are formed by, a temperature inversion occurs when and more. Chemicals such as chlorine, sulfur. effect duration of inhaling of exposure irritant gases on depends the specific on the. drogen dioxide, gene, chloride or sulfide, nitrogen dioxide, phos- ozone, and gases. ammonia are among most. a potent and cellular inhibiting toxin, cellular blocking respiration. the cytochrome sys-.4. Acid also causes leaching of soil nutrients which lowers crop yields and increases nutrient pollution in the water (resulting in algal blooms) 5. Forest damage (due to pH of soil and water causing a change in internal conditions) 6. Damage to buildings, statues, and monuments- corrosion due to acids. an oxygen-deficient atmosphere is an atmosphere that contains less than __%. 19.5. a flammable atmosphere is an atmosphere with a concetration of flammable vaors at or above ___%. 10. a ___ substance is a material that is poisonos. toxic. a ___ irritant atmosphere is an atmosphere that harms only the parts of the body that it touches and does ...

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An oxygen deficient atmosphere, which can cause asphyxiation, is defined by the Occupational Safety and Health Administration (OSHA) as one containing less than …This section covers areas in which the employer knows, or has reason to believe, that a hazardous atmosphere or substance may exist, except where one or more of the …Irritant contact dermatitis. L24 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail. The 2024 edition of ICD-10-CM L24 became effective on October 1, 2023. This is the American ICD-10-CM version of L24 - other international versions of ICD-10 L24 may differ.Irritant gas inhalation injury is the result of gases that, when inhaled, dissolve in the water of the respiratory tract mucosa and cause an inflammatory response. Symptoms depend on which gas or chemical is inhaled and how deeply and for how long it was inhaled. Symptoms may include irritation of the eyes or nose, cough, blood in the sputum ...Health Effects. Most of the higher oxides of nitrogen are eye, skin, and respiratory tract irritants. Nitrogen dioxide is a corrosive substance that forms nitric and nitrous acids upon contact with water; it is more acutely toxic than nitric oxide, except at lethal concentrations when nitric oxide may kill more rapidly.Nitric oxide is a potent and rapid inducer of …Primary- emitted directly from a source. Secondary- not emitted same way, other pollutants react in the atmosphere. Compare and contrast primary air pollutants and secondary air pollutants. Industrial smog. Urban areas. Fossil fuels, sulfur dioxide, and fog. Close to ground. Yellow-brown haze. Cause health problems.

Hazardous atmosphere an atmosphere that exposes employees to a risk of death, incapacitation, injury or acute illness from one or more of the following causes: An atmospheric oxygen concentration below 19.5 percent or above 23.5 percent; A flammable gas, vapor, or mist in excess of 10 percent of its lower explosive limit (LEL);EXAM 2 Factors Affecting Enzyme Activity. 19 terms. CleGoMushAnna. Preview. Study with Quizlet and memorize flashcards containing terms like what is a secondary pollutant in the troposphere but beneficial in the stratosphere, secondary air pollutants are formed by, a temperature inversion occurs when and more.Definition of confined space (3) -Large enough and so configured that an employee can bodily enter and perform assigned work. -Has limited or restricted means of exit and entry. -Is not designed for continuous employee occupancy. (2) Conditions under which a trench is considered a confined space.Nitrogen Dioxide (NO 2) is one of a group of highly reactive gases known as oxides of nitrogen or nitrogen oxides (NO x ). Other nitrogen oxides include nitrous acid and nitric acid. NO 2 is used as the indicator for the larger group of nitrogen oxides. NO 2 primarily gets in the air from the burning of fuel.Objective. TO 1.0. Achieve a minimum score of 70% on the final course assessment. LO 1.1.1. List and describe the criteria for non-permit required confined spaces and permit required confined spaces, and discuss the hazards associated with each category of confined space. LO 1.2.1.Define - secondary air pollutant. substances that become harmful after they react with other gases or substances in the air, lasting effects. What are the six criteria pollutants in the original Clean Air Act? particulate materials, lead, nitrogen oxides, carbon monoxide, volatile organic compounds, and sulfur dioxide. Welding in a confined space is a major cause of explosions in areas that contain combustible gas. True. Carbon monoxide is a colorless and odorless gas. True. Helium, argon and nitrogen are all examples of gases that do not pose a threat to workers in confined space entry. False. Secondary Pollutants. form in the atmosphere through chemical and photochemical reactions from the primary pollutants. examples include: sulfuric acid H2SO4. can cause respiratory problems. nitrogen dioxide NO 2. gives air a brownish coloration. ozone O3.

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Peroxyacetyl nitrate is a peroxyacyl nitrate.It is a secondary pollutant present in photochemical smog. It is thermally unstable and decomposes into peroxyethanoyl radicals and nitrogen dioxide gas. It is a lachrymatory substance, meaning that it irritates the lungs and eyes.. Peroxyacetyl nitrate, or PAN, is an oxidant that is more stable than …The secondary pollutants caused by the presence of NO 2 in the atmosphere also have their own adverse effects. PANs are an irritant, nitric acid causes acid rain and particulate matter and O3 cause respiratory problems. Who and what is emitting NO x? As previously mentioned, NO x emissions comes from combustion …PAN spreads throughout the lower regions of the atmosphere and decomposes to nitrogen oxides, and thus plays a part in the formation of ozone. Ozone higher up in the atmosphere protects us from harmful cosmic radiation, but in the troposphere, it is a harmful pollutant. ... It is an inhalation toxin and eye irritant; and it is …The atmosphere that developed after primordial gases had been lost or had failed to accumulate is termed secondary. Although the chemical composition of the atmosphere has changed significantly in the billions of years since its origin, the inventory of volatile elements on which…. Read More. Other articles where secondary atmosphere is ... Welding in a confined space is a major cause of explosions in areas that contain combustible gas. True. Carbon monoxide is a colorless and odorless gas. True. Helium, argon and nitrogen are all examples of gases that do not pose a threat to workers in confined space entry. False. a ___ irritant atmosphere is an atmosphere that harms only the parts of the body that it touches and does not cause further injury. primary an example of a secondary irritant …Chemicals such as chlorine, sulfur. effect duration of inhaling of exposure irritant gases on depends the specific on the. drogen dioxide, gene, chloride or sulfide, nitrogen dioxide, phos- ozone, and gases. ammonia are among most. a potent and cellular inhibiting toxin, cellular blocking respiration. the cytochrome sys-.

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Nitrogen dioxide is an irritant gas that produces oxidant lung injury similar to that produced by ozone. Nitrogen dioxide is far less potent than ozone and few functional or pathological changes have been observed in animals exposed to <0.5 ppm nitrogen dioxide. Pathological changes occur primarily in the terminal bronchioles and the alveolar ...Secondary gaseous pollutants represented by ozone and secondary particulate matter, including sulfates, nitrates, ammonium salts, and secondary organic aerosols, are formed in the atmosphere, affecting air quality and human health. This paper summarizes the formation pathways and mechanisms of important atmospheric secondary pollutants.1. Introduction [2] Atmospheric aerosols play important roles in a wide range of environmental issues from adverse impact on human health effects and visibility to modulating global and regional climate. Organic matter is a major component of atmospheric aerosols, contributing 20–50% of the total fine aerosol mass at continental …secondary pollutants. pollutants that are formed by the combination of primary pollutants in the atmosphere (ie: HNO3, ozone, H2SO2, smog, acid rain) ... aerosols have a cooling effect in the atmosphere, respiratory irritant Carbon monoxide: formed from incomplete combustion, malfunction of exhaust system or indoor NG heater; leads to headaches ... The atmosphere that developed after primordial gases had been lost or had failed to accumulate is termed secondary. Although the chemical composition of the atmosphere has changed significantly in the billions of years since its origin, the inventory of volatile elements on which…. Read More. Other articles where secondary atmosphere is ... a. Ground level ozone is classified as a pollutant because it reduces lung function and. A. its concentrations are low but the particle size is high. B. it occurs in the atmosphere only. C. it is entirely anthropogenic in nature. D. it can degrade plant surfaces. E. it is an unstable molecule. d. Which are the 6 criteria air pollutants ...Secondary irritants may produce systemic toxic effects in addition to surface irritation. Examples of secondary irritants include benzene, carbon tetrachloride, ethyl chloride, …Nitric oxide (NO) is a colorless gas, the most common form of nitrogen emitted into the atmosphere, either by fuel combustion or due to natural emissions. Nitric oxide is interconverted with nitrogen dioxide fairly readily in the atmosphere, resulting in catalytic cycles leading to ozone formation in the troposphere and ozone loss in the stratosphere.A) It is a respiratory irritant B) It can adversely affect plant tissue C) Its sources are exclusively anthropogenic D) It results from the combustion of coal and oil E) It is a corrosive gas, Which is the correct sequence of the events that lead to acid deposition? A) Dissociation of pollutants, secondary pollutants are formed, combustion ...2 days ago · Ozone is a gas composed of three atoms of oxygen. Ozone occurs both in the Earth's upper atmosphere and at ground level. Ozone can be good or bad, depending on where it is found. Called stratospheric ozone, good ozone occurs naturally in the upper atmosphere, where it forms a protective layer that shields us from the sun's harmful ultraviolet ... Hazardous atmosphere an atmosphere that exposes employees to a risk of death, incapacitation, injury or acute illness from one or more of the following causes: An atmospheric oxygen concentration below 19.5 percent or above 23.5 percent; A flammable gas, vapor, or mist in excess of 10 percent of its lower explosive limit (LEL); ….

Chapter 18. Get a hint. acid deposition. Click the card to flip 👆. The falling of acids and acid-forming compounds from the atmosphere to the earth's surface. Acid deposition is commonly known as acid rain, a term that refers to the wet deposition of droplets of acids and acid-forming compounds. Click the card to flip 👆.Secondary pollutant; Reaction of NO from motor vehicles with sunlight, heat, and O2; Causes damage to plants and respiratory system, traps heat, thermal inversion nitrogen dioxide Eye and lung irritant; Brown color of smog; Formed from impurities in fossil fuels during combustion; its presence in the atmosphere leads to acid rainPeroxyacyl nitrates. In organic chemistry, peroxyacyl nitrates (also known as Acyl peroxy nitrates, APN or PAN s) are powerful respiratory and eye irritants present in photochemical smog. They are nitrates produced in the thermal equilibrium between organic peroxy radicals by the gas -phase oxidation of a variety of volatile organic compounds ...Peroxyacetyl nitrate is an unstable, highly oxygenated compound that exists only in the atmosphere. It is a key intermediate in the formation of the air pollutant ozone. Definition source: American Chemical Society. The Earth Observing System Data and Information System is a key core capability in NASA’s Earth Science Data Systems Program. It ...This course is based on the unit of competency MSMWHS217: Gas Test Atmospheres. This unit covers the testing of working atmosphere to determine if it is safe for the proposed work. Testing could include the use of electronic test apparatus. The materials in this unit cover the activities involved in:4. Acid also causes leaching of soil nutrients which lowers crop yields and increases nutrient pollution in the water (resulting in algal blooms) 5. Forest damage (due to pH of soil and water causing a change in internal conditions) 6. Damage to buildings, statues, and monuments- corrosion due to acids.PPM calculations basics. -Calculation based on volumes. -volume of gas or vapor contaminant, and volume of air in room or collected by sampling device. Pressure used for saturation point. -Vapor pressure of chemical and atmospheric pressure. General PPM equation. ppm= (Vgas/Vair)*10^6. Room volume calculation. -Air volume : Work area-room volume.Finding the right secondary school for your child can be a daunting task. With so many options available in Hertfordshire, it can be overwhelming to navigate through the choices an...Primary- emitted directly from a source. Secondary- not emitted same way, other pollutants react in the atmosphere. Compare and contrast primary air pollutants and secondary air pollutants. Industrial smog. Urban areas. Fossil fuels, sulfur dioxide, and fog. Close to ground. Yellow-brown haze. Cause health problems. PPM calculations basics. -Calculation based on volumes. -volume of gas or vapor contaminant, and volume of air in room or collected by sampling device. Pressure used for saturation point. -Vapor pressure of chemical and atmospheric pressure. General PPM equation. ppm= (Vgas/Vair)*10^6. Room volume calculation. -Air volume : Work area-room volume. A secondary irritant atmosphere is, Primary Air Pollutant • Harmful substance that is emitted directly into the atmosphere. • i.e. - carbon monoxide, nitrogen dioxide, sulfur dioxide, particulates Secondary Air Pollutant • Harmful substance formed in the atmosphere when a primary air pollutant reacts with substances normally found in the atmosphere or with other air pollutants. • i.e. - nitric …, Ozone (also called smog) is one of the most dangerous and widespread pollutants in the U.S. It may be hard to imagine that pollution could be invisible, but ozone begins that way. As ozone concentrates and mixes with other pollutants, we often call it by its older, more common name—smog. It is currently one of the least well-controlled ..., The secondary pollutants caused by the presence of NO 2 in the atmosphere also have their own adverse effects. PANs are an irritant, nitric acid causes acid rain and particulate matter and O3 cause respiratory problems. Who and what is emitting NO x? As previously mentioned, NO x emissions comes from combustion engines. But what is happening in ..., In the atmosphere it can be used in chemical reactions that produce ozone. Drag and drop the pollutant to its major source. - Transportation: Particulate material, Carbon monoxide - Both: Sulfur dioxide - Power plants: Nitrogen oxides. Select all of the statements that correctly apply to the data shown by the graph below., Peroxyacyl nitrates. In organic chemistry, peroxyacyl nitrates (also known as Acyl peroxy nitrates, APN or PAN s) are powerful respiratory and eye irritants present in photochemical smog. They are nitrates produced in the thermal equilibrium between organic peroxy radicals by the gas -phase oxidation of a variety of volatile organic compounds ..., AP Environmental Unit 7. Which of the following describes tropospheric ozone? Click the card to flip 👆. produced from a reaction between NOx, CO, and VOCs. classified as a secondary pollutant. causes respiratory problems. …, Finding the right secondary school for your child is a crucial decision that can have a significant impact on their education and future. With so many options available, it can be ..., an oxygen-deficient atmosphere is an atmosphere that contains less than __%. 19.5. a flammable atmosphere is an atmosphere with a concetration of flammable vaors at or above ___%. 10. a ___ substance is a material that is poisonos. toxic. a ___ irritant atmosphere is an atmosphere that harms only the parts of the body that it touches and does ... , This course is based on the unit of competency MSMWHS217: Gas Test Atmospheres. This unit covers the testing of working atmosphere to determine if it is safe for the proposed work. Testing could include the use of electronic test apparatus. The materials in this unit cover the activities involved in:, A traditional certificate of deposit requires that you deposit money into a savings institution for a fixed period of time. In return for your money, the bank pays you a rate of in..., GPO Source: e-CFR. 1917.23 (a) Purpose and scope . This section covers areas in which the employer is aware that a hazardous atmosphere or substance may exist, except where one or more of the following sections apply: §1917.22 Hazardous cargo; §1917.24 Carbon monoxide; §1917.25 Fumigants, pesticides, insecticides and hazardous preservatives ..., Acute toxicity of a respiratory irritant exposure is defined by symptom onset within seconds to up 24 hours after a gas exposure. Symptoms, as well as symptom onset, are largely based on the water solubility of the gas, if that gas forms an acid or base when dissolved in the water of the respiratory tract (Kimbell et al. 1993 ). Generally, more ..., A) It is a respiratory irritant B) It can adversely affect plant tissue C) Its sources are exclusively anthropogenic D) It results from the combustion of coal and oil E) It is a corrosive gas, Which is the correct sequence of the events that lead to acid deposition? A) Dissociation of pollutants, secondary pollutants are formed, combustion ..., Airborne Irritant Induced Sinusitis is a type of sinusitis, which is inflammation of the sinus cavity. The inhaled airborne irritants (particulate matter from dust or gaseous fumes) irritate the mucosal membranes of the nasal cavity, sinuses, and throat, leading to its inflammation. The swelling blocks the sinus openings and does not allow ..., a. Ground level ozone is classified as a pollutant because it reduces lung function and. A. its concentrations are low but the particle size is high. B. it occurs in the atmosphere only. C. it is entirely anthropogenic in nature. D. it can degrade plant surfaces. E. it is an unstable molecule. d. Which are the 6 criteria air pollutants ..., OSHA 300 log and OSHA 300A summary. during OSHA inspection. right to talk to inspector privately. right of workers to seek safety and health without fear of punishment is in. section 11 (c) of OSH act. main responsibilities employers have under OSHA is to. provide training required by OSHA standards. , Purpose and scope. This section covers areas in which the employer knows, or has reason to believe, that a hazardous atmosphere or substance may exist, except where one or more of the following sections apply: § 1918.94(a), Carbon monoxide; § 1918.94(b), Fumigated grains; § 1918.94(c), Fumigated tobacco; § 1918.94(d), Other fumigated cargoes; § 1918.94(e), Catch of menhaden and similar ..., A condition in which a layer of warm air traps polluted air close to Earth's surface. Sulfur oxides and nitrogen oxides, emitted by burning fossil fuels, enter the atmosphere-where they combine with oxygen and water to form sulfuric acid and nitric acid-and return to Earth's surface. Study with Quizlet and memorize flashcards containing terms ..., A secondary irritant is one that may produce systemic toxic effects in addition to surface irritation. Examples of secondary irritants include benzene, carbon tetrachloride, ethyl chloride, trichloroethane, trichloroethylene, and chloroprene. Irritant gases are widely used throughout all areas of industrial activity., Objective. TO 1.0. Achieve a minimum score of 70% on the final course assessment. LO 1.1.1. List and describe the criteria for non-permit required confined spaces and permit required confined spaces, and discuss the hazards associated with each category of confined space. LO 1.2.1., Secondary pollutant; Reaction of NO from motor vehicles with sunlight, heat, and O2; Causes damage to plants and respiratory system, traps heat, thermal inversion nitrogen dioxide Eye and lung irritant; Brown color of smog; Formed from impurities in fossil fuels during combustion; its presence in the atmosphere leads to acid rain, OSHA 300 log and OSHA 300A summary. during OSHA inspection. right to talk to inspector privately. right of workers to seek safety and health without fear of punishment is in. section 11 (c) of OSH act. main responsibilities employers have under OSHA is to. provide training required by OSHA standards. , An atmosphere becomes flammable when the ratio of oxygen to combustible material in the air is neither too rich nor too lean to burn. ... hydrochloric acid, hydrofluoric acid, sulfuric acid, nitrogen dioxide, ammonia and sulfur dioxide. A secondary irritant is one that may produce systemic toxic effects in addition to surface irritation ..., Find out about the different types of lighting and light bulbs for your home from recessed to hanging, Expert Advice On Improving Your Home Videos Latest View All Guides Latest Vie..., First: Oxygen levels. Second: Flammability/Explosivity. Third: Toxicity. When monitoring, readings must be taken every two feet from top to bottom in order to account for a …, Domain Name System, or DNS as it is more commonly referred to, is the protocol that converts user-friendly domain names, such as azcentral.com, into IP addresses. IP addresses are ..., Air Pollution. Get a hint. Ground level ozone (tropospheric ozone) Click the card to flip 👆. O3. Secondary pollutant, formed with photochemical smog when NOx and VOC's react with UV rays. harmful eye and lung irritant. Acts as a powerful greenhouse gas in the troposphere. Click the card to flip 👆., OSHA 300 log and OSHA 300A summary. during OSHA inspection. right to talk to inspector privately. right of workers to seek safety and health without fear of punishment is in. section 11 (c) of OSH act. main responsibilities employers have under OSHA is to. provide training required by OSHA standards. , Air Pollution. Get a hint. Ground level ozone (tropospheric ozone) Click the card to flip 👆. O3. Secondary pollutant, formed with photochemical smog when NOx and VOC's react with UV rays. harmful eye and lung irritant. Acts as a powerful greenhouse gas in the troposphere. Click the card to flip 👆., Nitrogen dioxide is an irritant gas that produces oxidant lung injury similar to that produced by ozone. Nitrogen dioxide is far less potent than ozone and few functional or pathological changes have been observed in animals exposed to <0.5 ppm nitrogen dioxide. Pathological changes occur primarily in the terminal bronchioles and the alveolar ..., Primary- emitted directly from a source. Secondary- not emitted same way, other pollutants react in the atmosphere. Compare and contrast primary air pollutants and secondary air pollutants. Industrial smog. Urban areas. Fossil fuels, sulfur dioxide, and fog. Close to ground. Yellow-brown haze. Cause health problems., Interior design is an art and science that makes homes look beautiful and make people feel comfortable. Expert Advice On Improving Your Home Videos Latest View All Guides Latest Vi..., Secondary irritants may produce systemic toxic effects in addition to surface irritation. Examples of secondary irritants include benzene, carbon tetrachloride, ethyl chloride, …