Pollution is defined as harmful substances or energy into the natural environment, causing adverse changes that affect human health, ecosystems, and the planet's overall sustainability. These harmful materials, known as pollutants, can be physical substances (trash, chemicals, gases) or intangible agents (noise, heat, light).
Pollution can arise from various sources, including industrial activities, vehicle emissions, agricultural practices, deforestation, and improper waste disposal. Human activities such as burning fossil fuels for energy, using pesticides and fertilizers in farming, and releasing untreated sewage into water bodies contribute significantly to pollution levels.
The effects of pollution are far-reaching and can impact air quality, water resources, soil health, and biodiversity. Air pollution can lead to respiratory diseases and climate change, while water pollution can contaminate drinking water sources and harm aquatic life. Soil pollution can reduce agricultural productivity and disrupt ecosystems.
Lahore rise among top 5 polluted cities of world.