| Type of production | Process | Pollutants | Other contaminants that may need to be cleaned at auxiliary units | Recommended type of gas treatment plant | 
| Natural gas production 
 | Gas well operation | Carbon monoxide, hydrogen sulfide, methanol, saturated hydrocarbons | NOx, SO2 | 
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| Field gas treatment | Benzol, xylene, kerosene, toluene, hydrogen sulfide, methyl mercaptan, ethyl mercaptan, naphtha solvent, butanol, ethanol, white spirit, saturated hydrocarbons, carbon monoxide, ammonia, benzapyrene, gasoline, methanol | NOх, SO2, suspended solids | 
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| Field gas compression | Benzapyrene, benzol, kerosene, toluene, hydrogen sulfide, carbon disulfide, saturated hydrocarbons, carbon monoxide, formaldehyde. | NOх, suspended solids, soot, gaseous fluorides | 
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| Auxiliary systems (power supply, flaring, etc.) | Benzapyrene, kerosene, carbon monoxide, formaldehyde | NOx, SO2 | 
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| Oil production | Well production systems | Benzene, cumene, xylene, toluene, hydrogen sulfide, saturated hydrocarbons, methanol | 
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| Preparation of oil, associated petroleum gas | Acetone, benzapyrene, gasoline, benzene, butyl acetate, xylene, isobutene, kerosene, VOCs, toluene, hydrogen sulfide, solvent naphtha, butanol, ethanol, methanol, white spirit, saturated hydrocarbons, carbon monoxide, formaldehyde | NOx, SO2, suspended solids, Fe2O3, inorganic dust, soot, gaseous fluorides | 
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| Formation pressure maintenance | Benzol, xylene, VOCs, toluene, hydrogen sulfide, methanol, white spirit, saturated hydrocarbons, carbon monoxide | NOx, Fe2O3, dust inorganic, manganese and its compounds, gaseous fluorides, P2O5 | 
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| Auxiliary systems (power supply, treatment facilities, tank battery) | Benzapyrene, carbon monoxide, benzene, xylene, cumene, toluene, hydrogen sulfide, methanol, saturated hydrocarbons | NOx, SO2 | 
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| Treatment of oil | Carbon monoxide, saturated hydrocarbons, benzene, xylene, VOCs, hydrogen sulfide, ammonia, carbon disulfide, gasoline, toluene, solvent naphtha, kerosene, benzapyrene, formaldehyde, styrene, ethylene glycol, methanol | NOx, SO2, dust, soot, gaseous fluorides | 
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| Processing of natural and associated gas | Natural gas processing and condensate stabilization | Carbon monoxide, saturated hydrocarbons, VOCs, hydrogen sulfide | NOx, SO2 | 
 
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| Helium recovery from natural gas | Carbon monoxide, methane, ethane | NOx, soot | 
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| Sulfur recovery | Carbon monoxide, methane, hydrogen sulfide, VOCs | NOx, SO2, soot | 
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| Associated petroleum gas processing | Saturated hydrocarbons, carbon monoxide | NOx | 
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| Separation of wide light hydrocarbon fraction (WLHF) on gas fractionation units | Saturated hydrocarbons, methanol | 
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| Associated petroleum gas compression | Saturated hydrocarbons, carbon monoxide | NOx | 
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| Consumer industry | Textile production | Carbon monoxide, kerosene, ethanol, formaldehyde | NOx, SO2, NaOH | 
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| Tanneries | Hydrogen sulfide, ammonia, organic solvents | 
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| Agriculture | Livestock farming | Ammonia, methane, hydrogen sulfide, carbon monoxide | NOx, SO2, suspended solids | 
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| Food industry | Food production | Carbon monoxide, VOCs | NOx, SO2, dust | 
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| Beverages, milk and dairy products | Carbon monoxide, ammonia | NOx, dust | 
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| Mining and processing of iron ores, non-ferrous metal ores | Saturated hydrocarbons, carbon monoxide | NOx, SO2, dust of inorganic compounds, suspended solids | 
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| Extraction of precious metals | Hydrogen sulfide, carbon disulfide, carbon monoxide, benzapyrene, formaldehyde, kerosene, ammonia | NOx, SO2, dust of inorganic compounds, suspended solids NaOH | 
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| Production of rare and rare-earth metals | Carbon monoxide, ammonia, VOCs | NOx, SO2, dust, metals | 
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| Underground mining of coal | Drilling and blasting | Benzapyrene, carbon monoxide, kerosene, benzene, xylene, toluene, hydrogen sulfide, saturated hydrocarbons | NOx, SO2, Fe2O3, inorganic dust, manganese and its compounds, soot | 
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| Ventilation and degasifying | Carbon monoxide, methane | NOx, SO2, Fe2O3, inorganic dust, manganese and its compounds, | 
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| Rock transportation | Saturated hydrocarbons, carbon monoxide | NOx, SO2, inorganic dust, soot | 
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| Coal storage | Carbon monoxide, kerosene | NOx, SO2, inorganic dust, soot | 
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| Coal beneficiation | Carbon monoxide, kerosene, methane, formaldehyde, benzapyrene | NOx, SO2, Fe2O3, inorganic dust, manganese and its compounds, soot | 
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| Production of surface, objects or products treatment using coatings, organic solvents | Solvent application | Acetone, butyl alcohol, butyl acetate, xylene, toluene, ethyl alcohol, ethyl acetate, methyl isobutyl ketone, cyclohexanone, ethyl glycol acetate, ethyl cellosolve | 
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| Application of varnishes | Solvent naphtha, formaldehyde | 
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| Paints and enamels application | Acetone, benzene, butyl cellulosolve butyl acetate, xylene, methyl isobutyl ketone, methylethyl ketone, nitropropane, propyl carbonate, turpentine, solvent, butyl alcohol, diacetone alcohol, isobutyl alcohol, n-butyl alcohol, ethylodetolyl, ethyl alcohol, tolide, tolide, ethyl alcohol chlorobenzene, cyclohexanone, cyclohexanol, ethyl acetate, ethyl glycol acetate, ethylene glycol, ethyl carbitol, ethyl cellosolve, ammonia | Nitric acid, sulfuric acid, sodium hydroxide | 
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| Production of basic inorganic substances | Carbon monoxide, ammonia | NOх, SO2, sulfuric acid, fluorine compounds, hydrogen chloride | 
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| Production of other basic inorganic substances | Hydrogen peroxide production | Isopropyl alcohol, acetone | 
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| Silicon carbide production | Carbon monoxide, saturated hydrocarbons, benzyl, toluene, xylene, styrene, aromatic cyclic hydrocarbons | SO2 | 
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| Production of basic organic substances | Production of lower olefins and dienes. Production of aromatic compounds. Production of oxygen-containing organic compounds. Production of nitrogen-containing organic compounds | Carbon monoxide, saturated hydrocarbons, formaldehyde, methanol, ethanol, butanol, acetic acid, dimethylbenzene, acrylonitrile, ammonia, benzene, toluene, phenol, acetone, ethylene, ethylbenzene | NOx, SO2 | 
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| Production of fine organic synthesis | Carbon monoxide, saturated hydrocarbons, phenol, ethylene glycol, toluene, unsaturated hydrocarbons, benzene, ethanol, methanol, esters | NOx, SO2 | 
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| Polymer production | Synthetic rubber production | Saturated hydrocarbons, amylenes, toluene, methanol, carbon monoxide, cyclohexane, divinyl, styrene, ethylene, isobutylene, isoprene, acrylonitrile, gasoline | NOx, SO2 | 
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| Production of thermoplastic elastomers (styrene) | Carbon monoxide, cyclohexane, hexane, divinyl, toluene, saturated hydrocarbons | NOx | 
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| Polyethylene production | Ethylene, propylene, saturated hydrocarbons, propanal, carbon monoxide, butylene | NOx | 
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| Polypropylene production | Saturated hydrocarbons, propylene, carbon monoxide, acetic acid, formaldehyde | NOx | 
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| Polystyrene production | Saturated hydrocarbons, carbon monoxide, styren | NOx, SO2 | 
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| ABS plastics production | Carbon monoxide, ethylbenzene, vinylbenzene, gasoline, acrylonitrile, saturated hydrocarbons | NOx, SO2 | 
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| Polyethylene terephthalate production | Carbon monoxide, terephthalic acid, isopropyl alcohol, dinyl, acetaldehyde, ethylene glycol | NOx, SO2 | 
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| Production of high molecular weight compounds for special purposes (polycarbonates, polyamides, polyurethanes, fluoroplastics) | Methanol, ethylene glycol, phenol, carbon monoxide | NOx, SO2 | 
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| Production, as well as auxiliary branches of wastewater treatment enterprises | Ammonia, methyl mercaptan, ethyl mercaptan, hydrogen sulfide, saturated hydrocarbons, phenol, formaldehyde | NOx | 
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| Incinerators, plants for thermal treatment of municipal solid and industrial waste | Carbon monoxide, hydrocarbons (saturated, unsaturated, polycyclic, aromatic and other), benzapyrene, dioxins | NOx, SO2, soot, dust, suspended solids (including heavy metals), hydrogen chloride, hydrogen fluoride | 
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| Production of cellulose, wood pulp, paper, cardboard | Methyl mercaptan, hydrogen sulfide, dimethyl sulfide, dimethyl disulfide, formaldehyde, phenol, carbon monoxide, methanol, styrene, ammonia | NOx, SO2, suspended solids | 
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| Manufacture of ceramic products | Carbon monoxide, VOCs | NOx, SO2, dust | 
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| Iron and steel industry, by-product coke industry | Carbon monoxide, pyridine bases, aromatic hydrocarbons, phenol, ammonia, benzapyrene, hydrogen sulfide | NOx, SO2, Fe2O3, inorganic dust, manganese and its compounds, suspended solids | 
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| Non-ferrous industry | Production of copper, aluminum, lead, zinc, cadmium, nickel, cobalt | Carbon monoxide, aromatic hydrocarbons, VOCs, dioxins, hydrogen sulfide | NOx, SO2, hydrogen chloride, sulfuric acid, inorganic dust, metals | 
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| Radio-electronic industry | Carbon monoxide, saturated hydrocarbons, benzapyrene, phenol, methanol, acrolein, isopropyl alcohol, acetone, formaldehyde, ethanol, furfural, gasoline, ammonia, benzene, xylene, toluene, white spirit, ethyl acetate, hydrogen sulfide, acetic acid, styrene | NOx, SO2, sodium hydroxide, dust-inorganic, suspended solids, nitric acid, sulfuric acid, hydrochloric acid | 
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