A type of pollutant control device, scrubbers extract sulphur dioxide, chlorine, hydrogen sulphide, and chlorine gas from industrial exhaust to prevent the release of these pollutants into the environment.
Hydrofluorocarbons (HFCs) are currently one of the most commonly used alternatives for CFCs and HCFCs. The nomenclature can be a little confusing, but the simple version is that HFCs do not contain chlorine, which would be the chemical that is primarily responsible for the depletion of the ozone layer. The advent of HFCs as well as other substitutes is attributed with the resounding success of a Montreal Protocol, but we were able to phase out the manufacturing of CFCs and HCFCs while compromising their respective environmental and health benefits.
But hydrofluorocarbons (HFCs) are not innocuous; while these compounds do not deplete the ozone layer, yet do contribute to global warming. HFCs have a substantially longer lifetime in the atmosphere as CFCs and HCFCs, implying that their effects on climate change will be long-lasting as well. The atmosphere is a tremendously complex system that is always changing, and the emissions which we create must adapt in order to keep up with the changing environment. The Montreal Protocol is being expanded to cover HFCs, and there are current plans to do so due to the fact that there are replacements to these compounds available.
Stoves And Heaters With Low Emissions
It is not only outdoor air pollution that is a problem; each year, 3.8 million people worldwide die prematurely as a result of indoor air pollution caused by inefficient cooking habits. The majority of these fatalities are caused by the combustion of solid fuels like kerosene in enclosed environments, which allows air pollutant levels to rise to dangerous levels.
Cooking has become considerably more efficient as a result of improvements in stove construction and the use of alternative fuels, which has reduced the quantity of particulates produced in houses. Fuel-saving features such as secondary combustions, fans, and insulated combustion chambers are now available for biomass stoves, which help to burn off any unused fuel and ventilate any remaining pollutants. In the long run, we would like to move away from wood stoves, but also for low & middle-income countries where electricity and natural gas are not always available, they are good stepping stones.
Cooking, as well as heating, contributes to the polluting of indoor air. Water heaters and solar passive heating systems reduce the need for solid fuel use, while enhanced ventilation designs, such as stove covers and chimneys, can assist funnel indoor air pollutants out of a home’s interior.
Consumer goods and building materials that are free of volatile organic compounds (VOCs).
Finally, we’ll talk about another invention that has the potential to minimise indoor air pollution: cheap consumer products and construction materials.
Many of the materials we use on a daily basis, including as paints, cleansers, adhesives, sealant, furniture, and flooring, emit volatile compounds (VOCs), that can accumulate if there is insufficient ventilation in the environment. More consumer goods and construction materials are being produced and certified as reduced or even VOC-free as a result of the growing concern about the effects of these emissions on the environment. The State Department of Health and the American Society for Testing and Materials (ASTM) provide guidelines for determining if an item is low-emitting.
Because these advancements are critical in the control of household air pollution, most building regulations require or provide credit for the use of low-emitting construction materials and the inclusion of low-emitting commercial products of an indoor environmental quality strategy.