Jul 30, 2025 · Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants.

Aug 14, 2025 · Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants.

Regulatory agencies charged with protecting the environment identify two main categories of pollution: point-source and nonpoint-source pollution. Point-source pollution is easy to identify.

Jun 5, 2025 · Air pollution consists of chemicals or particles in the air that can harm the health of humans, animals and plants. It can even damage buildings.

Jan 8, 2025 · When asked what water pollution is, most students can readily explain pollution as trash thrown away by humans that enters our water. Students can readily identify items visible to the …

Apr 10, 2025 · Light pollution, the excessive or inappropriate use of outdoor artificial light, is affecting human health, wildlife behavior, and our ability to observe stars and other celestial objects.

Noise pollution is considered to be any unwanted or disturbing sound that affects the health and well-being of humans and other organisms. Sound is measured in decibels.

Oct 19, 2023 · Ever since the light bulb's invention 150 years ago, artificial light has illuminated homes, streets, and skies — but with some unintended consequences. Learn about the major types of light …

Oct 19, 2023 · Runoff is a major source of water pollution. As the water runs along a surface, it picks up litter, petroleum, chemicals, fertilizers, and other toxic substances.

Apr 23, 2025 · Our ocean is being flooded with two main types of pollution: chemicals and trash. Chemical contamination, or nutrient pollution, is concerning for health, environmental, and economic …