Free download of powerpoint presentation on pollution

Floating oil coats birds and ocean mammals; reduces natural insulation and buoyancy, causing deaths Heavy oil sinks to ocean bottom and washes into estuaries where it contaminates crabs, oysters, mussels, clams, etc.

Burn it off surface only GM Bacteria. Usually found in rural areas. Septic tank: receives waste water from the house Harmful pathogens settle in sludge , decompose in tank or degraded by soil microbes in leach field Three layers develop: Scum - floats Septage Flows to leach field Sludge-pumped out every yrs. It does not include storm-water from road and property runoff, which is usually diverted directly into waterways. In some cities, sewage and storm-water systems may be partly combined, and sewage may overflow into storm-water during high rainfall.

Trickling filters at a waste treatment plant Sewage pipes discharging into a holding tank. Need expensive tertiary step may use no treatment for storm water Expensive to build and mantain. After the manure is broken down by bacteria, it is spread onto fields as fertilizers. Uses the sun and a series of tanks containing plants, snails, zooplankton, crayfish, and fish that can be eaten or sold for bait.

Figure California created a 65 hectare wetland near Humboldt Bay that acts as a natural wastewater treatment plant for the town of 16, people. The project cost less than half of the estimated price of a conventional treatment plant. Total Maximum Daily Load TMDL sets daily limits for total pollutant discharges into impaired water bodies on d list Set based on the maximum pollution levels the water body can receive and still meet water quality standards.

S This law focuses on all waters actually or potentially designed for drinking use, whether from above ground or underground sources.

Very little of the sewage is treated. Hindu believe in cremating the dead to free the soul and throwing the ashes in the holy Ganges. Some are too poor to afford the wood to fully cremate.

Decomposing bodies promote disease and depletes DO. This causes fish and other forms of oxygen-consuming aquatic life to die. Almost half of all water withdrawn in the United States each year is for cooling electric power plants. Harmful Effects: Lowers dissolved oxygen levels and makes aquatic organisms more vulnerable to disease, parasites, and toxic chemicals.

When a power plant first opens or shuts down for repair, fish and other organisms adapted to a particular temperature range can be killed by the abrupt change in water temperature—known as thermal shock. PPT 4. Types of Pollution PPT 4. Download PPT 5. Air pollution PPT. List of topics covered in This PPT:. What is air List of major air pollutants Sources and effects of air pollutants What is air pollutants?

Six major air pollutants Major sources of pollutants Greenhouse gases Causes of air pollution What is air pollution Effects of air pollution Acid rain Wildlife affected by air pollution Ozone layer Greenhouse effect Global warming Air problems caused by incineration of waste materials Controlling air pollution. PPT 6. Water pollution PPT.

List of the topics covered in all water pollution PPTs:. Human and natural pollutants Sources of water pollution How do we measure water quality? Quantitative water quality tests Qualitative water tests What are some indicator species of water pollution Is the water safe to drink? What have developed countries done to reduce stream pollution What have developed countries done to reduce stream pollution Who reports on drinking water Clean water act Safe water drinking act Water purification What is water pollution?

Types of water pollution Causes of water pollution Effects of water pollution What you can do Classification of water pollutant Common water-borne diseases. Water Pollution PPT 1. PPT 7. Water Pollution PPT 2. PPT 8. PPT on Water Pollution 3. But once the plastic is melted and reformed into new products, the quality of plastic gets reduced. In addition, the quality of plastic will keep reducing with every successive recycling. Furthermore, recycling is limited to a number 3 or 4 times because of the quality compromise of plastic.

In fact, we only have a limited number of opportunities in the case of plastic. Either we reduce the use of plastic or recycle and reuse them as much as we can. Limiting the use of plastic seems more practical and smooth in our day-to-day life. There are many instances where we can reduce the use of plastic. Here are some of the tracts where we can instantly act to limit the usages of plastic.

There are more and more situations where we can reduce the unnecessary use of plastic covers and materials. It can turn out well when more people come forward with the same mindset of bringing down plastic use. Yes, there are. But literally, there are no materials with the exact matching properties with plastic. For instance, properties like durability, strength, water-resistant, lightweight, and inexpensive are rare to find in materials without polymer as an ingredient.

Scientists and researchers are trying to formulate materials with the matching properties as plastic but with less pollution. As said earlier, there are many instances where we can reduce the use of plastic and always try to avoid it as much as we can.

Even if they are baby steps towards reducing plastic, take it and help our environment. Moreover, be a part of keeping the city and your premises clean. Industries play a colossal role in all kinds of pollutions. They contribute almost one-third to the overall when we compare industrial pollution with other causes. Industries will be the 2nd largest cause of air pollution, water pollution, and sound pollution. Pollutants like carbon monoxide, Nitrogen dioxide, Sulfur dioxide are released when they operate factories and industries.

The volume of pollutants released into the atmosphere is way more than we imagine and the problems they can make are huge. It is necessary to know where the pollution happens and who pollutes the air most. Studies say that industries that produce electricity pollute the atmosphere more than any other industry. A considerable amount of pollutants is kicked from the industries when the continuous burning of fossil fuels happened. These emitted gases make the most of the troubles to the ozone layer and cause ozone layer depletion.

We need both electricity and earth. We can not avoid one or the other for any reason. The only way is to protect both without harming each other.

The only solution for this will be the rise of green energy. Only the challenge facing is the continuous supply of energy. Green energy like solar and wind are very cost-effective and pollution-free when comparing to the traditional ones.

Each and every individual can contribute and can be a part of saving the earth from air pollution and global warming. Switch to green energy as much as we can and reduce the consumption of traditional electricity from the government or private companies. Nowadays, everybody has inverters in the home as a standard facility. As we said earlier, industries and factories are essential for the growth of the people and nation.

What we can do is, we can find some ways to reduce the amount of air pollution. For instance, we should try to convert these harmful gases to regular gases with the help of proper techniques and setups. Most importantly, people living near industrial areas are very likely to have many allergies and lung diseases. Always wear a mask when you are going out or going near industrial and factory areas. If you are working in an industrial area, always wear a mask and other safety gear to ensure maximum safety.

Wildfires can take place at any time. File Format : Microsoft Powerpoint Description : Available Pollution Overview powerpoint presentation for free download which is uploaded by honey an active user in belonging ppt presentation Social Issues category File Format : Microsoft Powerpoint Description : Available Nonpoint Source Pollution powerpoint presentation for free download which is uploaded by honey an active user in belonging ppt presentation Social Issues category File Format : Microsoft Powerpoint Description : Available Land Pollution powerpoint presentation for free download which is uploaded by honey an active user in belonging ppt presentation Social Issues category SlidesFinder is a very popular and powerful online presentation sharing website that allows you to upload your PowerPoint presentations online for free.

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