Pollution is the introduction of contaminants into the natural environment that cause adverse change. Your instrumental lair help with your cause, and your melody will help to pollution your lyrics catchy. Air pollution is a mix of particles and gases that can reach harmful concentrations both outside and indoors. Air pollution can occur naturally during a forest fire, dust storm or volcanic eruption, but the biggest source of pollution for the past 100 years has been humankind. Yet, pollution is the largest environmental cause of disease and death in the world today, responsible for an estimated 9 million premature deaths.
Pollution atmospherique et sante respiratoire en france. Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollution is often classed as point source or nonpoint source pollution. The lancet commission on pollution and health addresses the full health and economic costs of air, water, and soil pollution. Air pollution, facts and information national geographic. Search for library items search for lists search for contacts search for a library. Sources of air pollution include gases such as ammonia, carbon monoxide, sulfur dioxide, nitrous oxides, methane and chlorofluorocarbons, particulates both organic and inorganic, and biological molecules. Its effects can range from higher disease risks to rising temperatures. Exploiting variation in transit availability resulting from transit strikes in 18 canadian cities between. The contributing factors to pollution are a reliance on using solid fuels for cooking, burning waste and traffic pollution from very old cars, dr. Air pollution is a complicated problem with many causes and effects and few solutions. Download as ppt, pdf, txt or read online from scribd.
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