Water treatment chemicals Swimming pools have two causes of pollutants. The – water treatment chemicals themselves and the breakdown products resulting from the water treatment. Sources of indoor pollutants Pollutants in the indoor environment may originate from outdoor sources. The UK Air Quality Strategy (Volume 1) describes the main outdoor sources for each pollutant, and potential effect on health and the environment. Pollutants emitted indoors come from, occupants and their activities, the building itself, cleaning materials and furnishings. The typical sources of indoor air pollutants are presented in table 6.3. Table 63 Typical sources of indoor air pollutants in school buildings Outdoor sources Building equipment, components & Other potential indoor furnishings sources Science laboratory Outdoor air pollution HVAC equipment substances Pollen, dust, growth in drip pans, Vocational art mould spores ductwork, coils and humidifiers substances Industrial Improper venting of combustion Design and emissions products technology materials Vehicle Dust or debris in plenums and Food preparation emissions ducts areas Agriculture and Other equipment Cleaning farms materials/air Emissions from office Outdoor fresheners equipment (volatile organic machinery Emissions from compounds, ozone) emissions rubbish Emissions from workshop, lab Pesticides and and cleaning equipment weedkillers Nearby sources Components Odours, PM (particulate matter) Loading bays Mould growth on or in soiled or and VOCs from Odours from water damaged materials mastics, adhesives, rubbish bins Dry drain traps that allow the varnishes Unsanitary passage of sewer gas Occupants with debris or Materials containing VOCs infectious diseases building (volatile organic compounds), markers exhausts near inorganic compounds or and similar pens outdoor air damaged asbestos Insects and other intakes Materials that produce pests particles(dust) or fibres Personal care products Underground sources Furnishings Stored petrol and Radon Emissions from new furnishings lawn and garden Pesticides and floorings equipment
Water treatment chemicals – Swimming pools have two causes of pollutants. The water treatment chemicals themselves and the breakdown products resulting from the water treatment. Sources of indoor pollutants Pollutants in the indoor environment may originate from outdoor sources. The UK Air Quality Strategy (Volume 1) describes the main outdoor sources for each pollutant, and potential effect on health and the environment. Pollutants emitted indoors come from, occupants and their activities, the building itself, cleaning materials and furnishings. The typical sources of indoor air pollutants are presented in table 6.3. Table 63 Typical sources of indoor air pollutants in school buildings Outdoor sources Building equipment, components & furnishings Other potential indoor sources Outdoor air pollution Pollen, dust, mould spores Industrial emissions Vehicle emissions Agriculture and farms Outdoor machinery emissions HVAC equipment growth in drip pans, ductwork, coils and humidifiers Improper venting of combustion products Dust or debris in plenums and ducts Science laboratory substances Vocational art substances Design and technology materials Food preparation areas Cleaning materials/air fresheners Emissions from rubbish Pesticides and weedkillers Odours, PM (particulate matter) and VOCs from mastics, adhesives, varnishes Occupants with infectious diseases markers and similar pens Insects and other pests Personal care products Stored petrol and lawn and garden equipment Other equipment Emissions from office equipment (volatile organic compounds, ozone) Emissions from workshop, lab and cleaning equipment Nearby sources Loading bays Odours from rubbish bins Unsanitary debris or building exhausts near outdoor air intakes Components Mould growth on or in soiled or water damaged materials Dry drain traps that allow the passage of sewer gas Materials containing VOCs (volatile organic compounds), inorganic compounds or damaged asbestos Materials that produce particles(dust) or fibres Underground sources Radon Pesticides Furnishings Emissions from new furnishings and floorings