Outlines _____________________ • What is pollution ? • Sources of pollution • Effects of pollution • Awareness against pollution • Renewable energy and remedies • Conclusion Outlines _____________________ • What is pollution ? • Sources of pollution • Effects of pollution • Awareness against pollution • Renewable energy and remedies • Conclusion Pollution is the introduction of harmful materials into the environment . These harmful materials are called pollutant s _________________________________ Human products Trash Chemical reactions Pollution Evolution _________________________________ Cause Pollution Effects Awareness campaigns _________________ • Stockholm Environment Institute (SEI) • Center for International Environmental Law(CIEL) • International Union for Conservation of Nature(IUCN) Renewable Energy _______________ • Wind Energy • Solar Energy • Hydroelectric • Biomass ____________ Remedies Solutions for a better earth Outlines _____________________ • What is pollution ? • Sources of pollution • Effects of pollution • Awareness against pollution • Renewable energy and remedies • Conclusion Sources of Pollution Point Source Pollution Non - point source pollution Point source Pollution Point source pollution is defined by the U.S. Environmental Protection Agency (EPA) as “ any single identifiable source of pollution from which pollutants are discharged ” Definition Point source Pollution • discharges from wastewater treatment plants • operational wastes from industries • combined sewer outfalls Examples Non - point source pollution Non - point source pollution does not come from a specific source Instead, it originates from many places or from a widespread area Definition Non - point source pollution Examples • Sediments from construction, forestry operations and agricultural lands • Oil, metals washed from roads, parking lots and driveways • Toxic chemicals and cleaners • Litter on streets, sidewalks and beaches Types of pollution Air Water Soil Noise Light Thermal Types of pollution Air Water Soil Noise Light Thermal Air Pollution Air pollution is a mixture of solid particles and gases in the air Car emissions, chemicals from factories, dust, pollen, and mold spores may be suspended as particles The release of these pollutants into the air is detrimental to human health and the planet Types of pollution Water Soil Noise Light Thermal Water Pollution Water pollution occurs when toxic pollutants and particulate matter are introduced into lakes, rivers, and seas These contaminants are generally introduced by human activities like improper sewage treatment and oil spills Air Types of pollution Soil Noise Light Thermal Soil Pollution It refers to the degradation of land due to the presence of chemicals or other man - made substances in the soil Any toxic chemicals present in the soil will get absorbed by the plants Since plants are producers in an environment, it gets passed up through the food chain Air Water Types of pollution Noise Light Thermal Noise pollution Noise pollution means the excessive amount of noise in the surrounding that disrupts the natural balance It is usually man - made, but certain natural calamities like volcanoes can contribute to noise pollution Air Water Soil