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Air pollution is a critical environmental issue which is focused due materials such as Nitrogen dioxide, Carbon dioxide, Carbon monoxide, Methane, hydro carbons etc., heavy population and rapid increase in industries and vehicular transport development across the globe. This major problem should be identified, monitored and kept in control. It is also found that air pollution is the fifth cause for death in India after high blood pressure, heart diseases, poor nutrition and tobacco smoking, about 6, 20,000 deaths occur due to air pollution every year. According to World Health Organization International agency for cancer research has identified that air pollution causes carcinogenic, a major cause for lung cancer in humans. It also puts air pollution in same category as tobacco, UV rays etc. Urban air pollution causes 1.3 million deaths globally every year. A quarter of these deaths are due to lung cancer. The number of premature deaths has been increased six folds in these ten years. There are traditional air monitoring station available are quiet few and are very expensive. In paper we will discuss a dynamic and proficient method of scrutinize air pollution using wireless sensor network. The sensor materials monitors and controls the air quality system. The nodes are distributed in area of interest to measure air quality index ,compared with standard value and the collected information are transmitted to the nearest base station and to the control room for air pollution. For power management requirements the processor can be made in sleep mode during idle conditions.

The present work aims to reduce the cost of energy for a residential building using a computer based analytical software. For analysis purpose many steps has been taken and investigated to reduce the energy consumption in the house hold, especially the segments that consume more energy. Detailed numerical analysis has been done for estimating the amount of savings in power demand and resulting paybacks period of these significant power saving steps. Following segments or power saving steps are investigated in the present study for a residential house situated in Jaipur, Rajasthan. Illumination: Replacing conventional incandescent bulbs by Light Emitting Diode (LED) lights, Electronic appliances: Replacing some old appliances such as refrigerators by high star rated appliances, Heating Ventilation and Air conditioning (HVAC): Effect of installing thermal insulation on power consumption by HVAC System, Hot water uses: Effect of replacing electric geysers by solar water heaters in the house. It has been concluded that about 59 % of reduction in electricity bill has been achieved by implementing affordable energy saving steps. This study is useful for every family in India. It has been found that from total amount of reduction in electricity bill about 35 % has been achieved by thermal insulation only.

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