23-11-2012, 02:43 PM
Acid rain
Acid rain.ppt.ppt (Size: 373 KB / Downloads: 65)
Causes and characteristics of acid rain
Burning of fossil fuel-release of sulphur and nitrogen oxide
Dissolution of this pollutants in atmospheric water vapour
Wet deposition - acid rain
dry deposition-fog or mist
Acid rain-ph 4 to3
Problems with acid rain – Human health
Contamination of drinking water, crops or animals with toxic metals
severe nerve or brain damage – Aluminium and Alzheimer’s disease
Respiratory problems – dry cough, asthma, headaches, eye, nose and throat irritation
Problems with acid rain - Destruction of forests
Disruption in the process of photosynthesis – damage to plant life
Retardation of chlorophyll production – damage and death of plant life
Killing of microorganisms from soil – reduced rate of decomposition - soil fertility
Direct damage to leaves, trunk and branches of plants
Acid rain – how to minimize
Individual and institutional / industrial means
Minimizing the combustion of fossil fuels
Improvement in public transport system
Creating awareness for individual level efforts to reduce acid rain