Hazardous substances seldom stay at the point of release. They move and are transported among the environmental mediums (air, water, soil and sediments, and biota).… Read More »Pathways of Hazardous Substances

This article describes the various sources of hazardous substances in our environment and the pathways through which they exist. Recall that hazardous substances are those… Read More »Sources of Hazardous Substances

Hazards posed by hazardous substances may either be safety related or health related. The properties that make substances hazardous are related to these hazards. The… Read More »Classification of Hazardous Substances

A hazardous substance is any substance, whether solid, liquid or gas, that may cause harm to your health. Hazardous substances are capable of causing significant… Read More »The Nature, Origin and Identification of Hazardous Substances

Certain atoms are radioactive, meaning that they emit radioactivity during spontaneous transformation from an unstable isotope to a more stable one. Radioactive pollution results from… Read More »Other Type of Environmental Pollution

With rainfed crops, salinization is not a problem because the salts are naturally flushed away. But when irrigation water is applied to crops and returns… Read More »Soil Salinization and Waterlogging in Irrigation

In the United States for instance, people are typically exposed to about 350 millirems of ionizing radiation per year. On average, 82% of this radiation… Read More »Sources of Radioactive Pollution

Areas in various parts of the world have become contaminated with radionuclides as a result of various human activities. In cases where the level of… Read More »Control and Prevention of Radioactive Pollution

Hiroshima, Nagasaki, Three Mile Island, Chernobyl and Fukushima-Daiichi: these names have become associated with the public‘s fear of radiation, either from use of nuclear weapons… Read More »Effects of Radioactive Materials

Exposure to ionizing radiation occurs in many occupations. Artificial sources of radiation are commonly used in the manufacturing and service industries, in areas of defense,… Read More »Occupational Exposure to Radiation

There are several ways of preventing water pollution. Some of them are discussed below: Green agriculture Globally, agriculture accounts for 70% of water resources, so… Read More »Water Pollution Prevention

Effects of water pollution on human health The presence of heavy metals such as Fluoride, Arsenic, Lead, Cadmium, Mercury, petrochemicals, chlorinated solvents, pesticides and nitrates… Read More »The Effects of Water Pollution

Water pollution is the release of substances into subsurface groundwater or into lakes, streams, rivers, estuaries, and oceans to the point where the substances interfere… Read More »Sources of Water Pollution

The Intergovernmental Panel on Climate Change (IPCC) report on climate change and water (Bates et al., 2008), concluded that observational records and climate projections provide… Read More »Water, Climate Change and Conflicts over Water Use