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What is Roof Top Rain Water Harvesting Rooftop Rain Water Harvesting is the technique through which rain

water is captured from the roof catchments and stored in reservoirs. Harvested rain water can be stored in sub-surface ground water reservoir by adopting artificial recharge techniques to meet the household needs through storage in tanks. The Main Objective of rooftop rain water harvesting is to make water available for future use. Capturing and storing rain water for use is particularly important in dryland, hilly, urban and coastal areas. In alluvial areas energy saving for 1m. rise in ground water level is around 0.40 kilo watt per hour. Need for Rooftop Rain Water Harvesting 1. To meet the ever increasing demand for water 2. To reduce the runoff which chokes storm drains 3. To avoid flooding of roads 4. To augment the ground water storage and control decline of water levels 5. To reduce ground water pollution 6. To improve the quality of ground water 7. To reduce the soil erosion 8. To supplement domestic water requirement during summer, drought etc Groundwater dams are structures that intercept or obstruct the natural flow of groundwater and provide storage for water underground. They have been used in several parts of the world, notably India, Africa and Brazil. Their use is in areas where flows of groundwater vary considerably during the course of the year, from very high flows following rain to negligible flows during the dry season. The basic principle of the groundwater dam is that instead of storing the water in surface reservoirs, water is stored underground. The main advantages of water storage in groundwater dams is that evaporation losses are much less for water stored underground. Further, risk of contamination of the stored water from the surface is reduced because as parasites cannot breed in underground water. The problem of submergence of land which is normally associated with surface dams is not present with sub-surface dams.

Prevention Around the House

Check your wiring, especially if your house is an older one. Older wiring may crack, exposing the live wires and causing shorts, which can ignite building materials. If you have mice or squirrels, they may chew the wiring. Have an exterminator get rid of them, then check the wiring for damage. Evaluate the electrical load in your home. Modern homes use many more electrical appliances than in the past and your wiring may not be able to handle the larger load. This can cause wires to overheat, creating a fire hazard in the walls. A qualified electrician can tell you about your wiring capacity. Have him check the circuits at the same time, to be sure there are enough of them of the proper size to handle appliances such as dryers and window air conditioners. Inspect gas appliances yearly. Natural gas appliances such as furnaces and water heaters require proper venting to allow fumes to escape safely. You should have furnaces checked yearly to assure they are burning cleanly and correctly. Have gas water heaters checked regularly for leaks or bad burners. Keep flammable objects away from heat sources. Everybody stores things like boxes, packing materials, and papers, as well as flammable liquids and aerosols. These should be kept in a well-ventilated area, away from any heat sources like pilot lights or light bulbs. Ideally, do not keep such items in the basement. Remember, fires tend to move up, so a fire in the

basement is a greater danger than one in the attic. Due to rising population, climate change, and environmental degradation, natural disasters are increasing in frequency. They are also becoming costlier and deadlier, according to Swiss Re, a reinsurance company. In 2009, natural disasters cost insurers about $110 billion. In 2010, the cost was double that, at $218 billion. According to the World Bank, there are several factors that affect a countrys vulnerability to natural disasters: its geographic size, the type of disaster, the strength and structure of its economy, and prevailing socioeconomic conditions. In a globalized economy, all these factors, as well as others, also play into how the worlds finances will be affected.

Some of the recent disasters that have affected the education sector in India are the Gujarat earthquake (2001) where 971 students and 31 teachers were killed, 1,884 schools collapsed; Tamil Nadu Fire (2004) incident where 93 children died in a fire due to explosion of a cooking gas cylinder; North Pakistan, Kashmir earthquake (2005) where 17,000 students died at school, and 10,000 school buildings destroyed (Petal 3 and 4). There is a growing body of research on the impacts of disaster events and gradual climate change on children, especially on child health. Studies have shown that children are among the worst affected in the aftermath of natural disasters. With increasing number of disasters being linked to changing climatic conditions, and the escalating frequency of droughts, floods, water scarcity, malaria and vector-borne diseases, children are likely to be adversely affected both as children and in their adult lives.

Adhere to any and all health, safety, and security policies. Use classroom or laboratory equipment properly and only for the manufacturers intended use. Follow the instructions of faculty or staff regarding proper classroom/laboratory procedures. Know the location of eye wash stations, fire extinguishers, safety showers, spill kits, and exits before beginning work. Use appropriate protective clothing (i.e., lab coats, closed-toe shoes, latex gloves, etc.) and follow appropriate procedures (i.e., hand washing, hazardous waste disposal, etc.) when working in potentially hazardous settings. Wash hands thoroughly with soap and water whenever leaving a laboratory.

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