Nothing

Saint Pedro Poveda College

Tertiary Department

Mary Cris Decamos Nat Sci1

BSBA-HRDM Dr. Pimentel

1. Differentiate contaminant from pollutant

Pollutant and contaminant are waste or unwanted materials. Contaminant is a word which is used to describe some constituent or ingredient of any product. Contaminant, in the field of chemistry, also refers to the mixtures that are prepared chemically. These can be cellular materials as well. Contaminant can simply be defined as a portion of specific material or body which is not wanted at that place and can cause contamination due to its presence in that product, body, or that specific environmental area. Pollutant is a material consisting of some waste. This can cause pollution in different parts of the environment such as soil, water or air. Pollutants are most of the times cause of pollution in most of the areas. The pollution which a pollutant can cause is dependent on the nature of this pollutant, the concentration of this pollutant and the time for which it can exist as a pollutant in certain area. The nature of chemicals involved in the pollutant also helps in determining the reactions that it can cause and the severity of pollution that is produced as the result of it.

2. What is water pollution?

Water pollution is any chemical, physical or biological change in the quality of water that has a harmful effect on any living thing that drinks or uses or lives (in) it. When humans drink polluted water it often has serious effects on their health.

3. Identify some of the water pollutants and its source

 Pollutant |  Source/Cause |  Effect |

 Sewage that includes domestic wastes, hospital wastes, excreta, etc. |  Sewarage of rural and urban areas. |  Oxygen depletion Spread of diseases/ epidemics |

 Metals-Mercury |  Industnal wastes |  Minamata disease (resulted from the contaminated waters of the Minamata bay in Japan in 1953) - causes numbness of limbs, lips and tongue, blurred...