Pollute example sentences

Let us now try to find out the substances or pollutants which are present in the polluted air.Petroleum products pollute many sources of water e.g., major oil spills in oceans.SO2 and NO2 after oxidation and reaction with water are major contributors to acid rain, because polluted air usually contains particulate matter that catalyse the oxidation.Ozone is a toxic gas and both NO2 and O3 are strong oxidising agents and can react with the unburnt hydrocarbons in the polluted air to produce chemicals such as formaldehyde, acrolein and peroxyacetyl nitrate.So, it is not only living organisms that get affected by polluted air but non-living things like buildings, monuments and statues also get affected.Clean water would have BOD value of less than 5 ppm whereas highly polluted water could have a BOD value of 17 ppm or more.The substances that pollute water are called water pollutants.It may be pointed out that although pollution due to noise, air and water is now here to stay, some practices on the part of the community can go a long way in making our precious environment less polluted and healthier for all of us.Lately, there has been a growing concern that even if there is ample water to meet the needs of the people, much of it may be polluted by domestic and industrial wastes, chemicals, pesticides and fertilisers used in agriculture, thus, making it hazardous for human use.Saying 'no' to plastics in any form, thus reducing toxic wastes that pollute water, air and the soil.The environment was treated as a 'free' entity and any industry could pollute the air and water without any restrictions.They pollute water with nitrates, metals and pesticides.Whether it was our rivers, air, groundwater - the environment was being polluted and the health of people disregarded.We studied in Class about the importance of water as a resource, the water cycle and how human intervention pollutes water bodies.Power plants give out tiny ash particles which also pollute the atmosphere.