Stock Pollutants
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Slide contains about source of stock pollutants, effect of stock pollutants on human health, effect of stock pollutants on environment, bio-accumulation, prevention, control and remediation. It also contains roles of plastic, heavy metal as stock pollutants, Persistent organic Pollutant. Brief description about the effect of Cadmium, Mercury and Ozone on human health, fffect of Cadmium, Mercury and Ozone on environment, Bio-accumulation and Bio-magnification. In bio-accumulation part how does bio-accumulation of stock pollutants occur, why bio-accumulation of stock pollutants occur and how does bio-accumulation calculate described. Bio-accumulation cycle of Mercury, Cadmium and Micro-plastic is described. Mechanism of Toxicity is also described. Finally prevention of plastic pollution, Persistent Organic Pollutants , controlling and remediation of heavy metals is described
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Stock Pollutants
- 2. Team members RAIHAN UDDIN 201818001 201818002 201818003 201818004 MUHAMMAD NASAYA HAIDER FARIA TASHNIM MAZUMDER AVISHEK DAS GUPTA SUMON MIAH 201818006 201818007 201818009 201818010 A. K. M. MAHAMUDUL HASAN FAZRUL ISLAM MD JAMIL AHMED SAYEM KHAN
- 3. OUTLINE Source of stock pollutants Effect of stock pollutants on human health Effect of stock pollutants on environment Bioaccumulation Preventio n Control Remediat ion
- 4. Pollutants, towards which the environment has low absorptive capacity are called stock pollutants. Residual waste that might accumulate over time. The damage they cause increases as more pollutant is emitted, and persists Stock pollutants
- 5. STOCK POLLUTION Heavy metals such as mercury and cadmium. Certain toxic chemicals. Highly radioactive fuel rods from nuclear reactors, Possibly stratospheric ozone might be regarded as non-degradable stock pollutants. Stock Pollutants Source
- 6. STOCK POLLUTION Some STOCK Pollutants
- 7. STOCK POLLUTION Plastic Plastics are typically organic polymers of high molecular mass Synthetic, most commonly derived from petrochemicals and many are partially natural Impacts on the health of ecosystems and humans Micro plastics
- 8. Plastic
- 9. Plastic
- 10. Heavy Metal Heavy metals – high atomic weight or high density Heavy metal’ has been used to describe metallic chemical elements and metalloids which are toxic to the environment and humans Heavy metals are found naturally on the Earth's crust since the Earth’s formation Anthropogenic activity
- 11. Heavy Metals A list of heavy metals according to their density of being greater than 5 g/cm3 and which are more common in our everyday life are : Titanium ,Vanadium , Chromium, Manganese , Iron, Cobalt , Nickel ,Copper , Zinc , Arsenic , Molybdenum
- 12. Heavy Metal
- 13. STOCK POLLUTION What is Persistent synthetic chemical? Persistent organic Pollutant (POPs) are synthetic chemicals widely used in a number of industrial and consumer products and include dioxin plus dioxin-like compounds including polychlorinated biphenyls (PCBs), polybrominated diphenyl esters (PBDEs), and literally hundreds of other compounds and congenators.
- 14. How Do POPs Affect People and Wildlife?
- 16. STOCK POLLUTION What are the effects of stock pollutants on Human health?
- 17. Effect of Cadmium on Human Health When eaten, large amounts of cadmium can severely irritate the stomach and cause vomiting and diarrhea Breathing high levels of cadmium damages people’s lungs and can cause death May build up in the kidneys and cause kidney disease and fragile bones Cadmium is considered a cancer- causing agent
- 18. Effect of Mercury on Human Health Deteriorates nervous system Impair hearing, speech and vision. Causes involuntary muscle movements Corrodes skin and mucous movements. Causes chewing and swallowing to become difficult. Difficulty in breathing, insomnia, headache, indecision, weakness Irritates to ears and stomach.
- 19. Effect of Ozone on Human Health Chest pain, coughing, throat irritation, and congestion It can worsen bronchitis, emphysema, and asthma. Healthy people also experience difficulty breathing when exposed to ozone pollution Ozone also can reduce lung function and inflame the lining of the lungs. Repeated exposure may permanently scar lung tissue.
- 20. STOCK POLLUTION What are the effects of stock pollutants on environment?
- 21. Effect of Cadmium on Environment It cannot be broken down into less toxic substances in the environment. It can be transported from one location to another, in particle forms that are either blown by the wind of washed away by water. Once it is in the environment it can remain present for a long time In the environment, cadmium is toxic to plants, animals and micro-organisms.
- 22. Effect of Mercury on Environment When released into the environment, it accumulates in water laid sediments where it converts into toxic methyl-mercury and enters the food chain, pain, coughing, throat irritation, and congestion Mercury contamination is a significant public health and environmental problem because methyl- mercury easily enters the bloodstream and affects the brain.
- 23. Effect of Ozone on Environment Ozone damages vegetation and ecosystems by inhibiting the ability of plants to open the microscopic pores on their leaves to breathe It interferes with the photosynthesis process by reducing the amount of carbon dioxide the plants can process and release as oxygen. Elevated levels of ozone leads to reduced agricultural crop and commercial forest yields, reduced growth and survivability of tree seedlings, and increased susceptibility to diseases, pests and other stresses such as harsh weather
- 24. Bioaccumulation What is Bioaccumulation? Bioaccumulation is a process of accumulation of chemicals in an organism that takes place if the rate of intake exceeds the rate of excretion. What is Biomagnification? Biomagnification takes place as chemicals transfer from lower trophic levels to higher trophic levels within a food
- 25. How does bioaccumulation of stock pollutants occur? Bioaccumulation can occur in two main ways: One way is by an amount of the chemical coming into the living organism faster than the organism can break it down and use it. The other main way that bioaccumulation occurs is by the chemical coming into the living organism and the organism not being able to break it down or excrete it in one way or another.
- 26. Why bioaccumulation of stock pollutants occur? The liver works in conjunction with the kidneys to remove metals from the Most of the metals will be eliminated through the kidneys and into But if metal ions can exchange valence shell electrons, then they combine with anions and are sequestered, often in the
- 27. How does bioaccumulation calculate? Bioaccumulation Factor Where C is the concentration and can be expressed in mass unit per mass or volume unit. A value below 1000 indicates “no possibility of accumulation in the organism.” Between 1000 and 5000, it is categorized as “bio-accumulative.” The values over 5000 are described as “very bio-accumulative”.
- 28. How does bioaccumulation calculate?
- 32. Mechanism of Toxicity Arsenic Biomethylation is a detoxification process and end products are methylated inorganic arsenic such as MMA (V) and DMA (V), which excreted through urine are bioindication of chronic arsenic exposure. However MMA (III) is not excreted and remains inside the cell as an intermediate product. Lead The ionic mechanism of lead toxicity occurs mainly due to the ability of lead metal ions to replace other bivalent cations like Ca2+, Mg2+, Fe2+ and monovalent cations like Na+, which ultimately disturbs the biological metabolism of the cell.
- 33. STOCK POLLUTION How can we save earth from STOCK POLLUTION?
- 34. STOCK POLLUTION Economics Of Pollution Prevention Hierarchy Prevention
- 35. STOCK POLLUTION Prevention of Plastic Pollution Purchasing Products Using Innovative Plastic Replacement Technologies Drinking Tap Water Instead of Buying Plastic Bottles Buying in Bulk Trying To Avoid Disposable Plastic Utensils
- 36. STOCK POLLUTION Prevention of Persistent Organic Pollutants Manufacturing Alternative Chemical Products Instead of Pops Introducing Alternative Chemicals in the Process Instead Of Pops Introducing Non-chemical Solutions Instead of Pops Ex: Replace DDT by Synthetc Pyrethroid
- 37. Using Eco-friendly Alternatives to Toxic Heavy Metals Replace Heavy Metal-based Pigments with Organic Pigments Replace Heavy Metal Catalysts with Laccase Enzyme Use Organic Elements In Cosmetics
- 38. Control Controlling Persistent Organic Pollutants Remediation of POP contaminated environment Bioremediati on Electro- kinetic Remediation
- 40. Heavy Metal Pollution Control Economic-industrial structural adjustments to the legal governance system. Strengthened environmental awareness of individuals through social supervision. Strict and effective control of pollution sources.
- 41. Heavy Metal Pollution Control Prevention and control of atmospheric precipitation pollution. Excavation. Stabilizing Metals in the Soil. Use of Plants.
- 42. Remediation of Heavy Metals
- 43. Heavy Metal Uptake by Microorgan
- 44. Conclusion In The End, one thing we all share is this earth, We can't stop this pollution in one day, but if we try hard enough maybe one day we can. Stock pollution is the worse type of pollution that we can do. So Reduce, Reuse, Recycle, Refuse. Stopping pollution is the best solution.