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the main causes for the rapid growth in the quantity of solid wastes are-i over population the ever increasing population is
wastes are classified into following categories1. biodegradable wastesthe waste materials that can be degraded by micro-organisms
all solid semi-solid wastes arising from human and animals activities except human excreta and sullage liquid wastes from bathrooms kitchens etc. are
1. noise producing industries railway stations and aerodromes should be located away from the residential
1. effect on general health noise pollution increases the rate of heart beat constriction of
1. road traffic of all the sources of noise pollution road traffic is the most prevalent and perhaps the most damaging source
the sound levels of power intensity and pressure are the physical effects which the human ear receives it is not however what the person perceives.
it is defined as the amount of heat liberated when one unit mass of fuel is burnt and the products of combustion are allowed to
it is defined as the total amount of heat produced when unit massvolume of the fuel has been burnt completely and the products have been cooled to
calorific value is one of the most important characteristics of a fuel. it judges the efficiency of fuel.calorific value is defined as the total
bomb calorimeter is used to determine the calorific value of solid and liquid fuels.construction it consists of
the term green house effect was first introduced by j. fourier in 1827. the green house effects are the rise in temperature of earth because certain
the gaseous pollutants can be controlled through the techniques of combustion absorption adsorption and cold trapping.a combustion though
particulate matter in gaseous effluents consists of particles of size ranging from 0.1 um to 100 um. the device selection is based upon physical and
the best way to maintain quality of air and pollutants emissions is by using less polluting fuels and processes. following can be taken to control
on living organism air pollution causes following effects on living organisma effects on
particulatesthese are suspended droplets solid particles or mixture of two. so all the atmospheric substances that are not gases are called
ground level ozoneground level ozone is the ozone present at the lower level of earth atmosphere. it is not emitted directly into the environment but
oxides of sulphur it includes so2 so3. it is a colorless gas having sharp pungent and suffocating odour. it is
oxides of nitrogen these include nitrogen monoxide no and nitrogen dioxide no2. no is a colourless odourless and
1. carbon monoxide coit is colourless odourless tasteless gas and is not soluble in water.source co is produced due toi
the major air pollutants arei carbon monoxide coii nitrogen oxides noxiii sulphur oxide soxiv ground level ozone o3v
these are solid liquid or gaseous substance present in the atmosphere in such concentrations as may be or tend to be injurious to human beings or
the man-made sources of air pollution are broadly categorized into threepoint or stationary sources it includes such sources which pollute at
combustion of fossil fuels and wood in industries automobiles aircrafts railways thermal plant kitchens etc. agricultural operations and industrial