Definition of Physical Barriers. Physical barrier is the environmental and natural condition that act as a barrier in communication in sending message from sender to receiver. Organizational environment or interior workspace design problems, technological problems and noise are the parts of physical barriers.
Nitrate: Health Effects in Drinking Water. Nitrate is one of the most common groundwater contaminants in rural areas. It is regulated in drinking water primarily because excess levels can cause methemoglobinemia, or blue baby disease.
Chemicals in the water also have negative effects on our health. Pesticides â can damage the nervous system and cause cancer because of the carbonates and organophosphates that they contain. Chlorides can cause reproductive and endocrinal damage. Nitrates â are especially dangerous to babies that drink formula milk.