SEMESTER-III ENVIRONMENT, HEALTH AND SAFETY MANAGEMENT DSC301 Col. (Prof.) Rajive Kohli, Ph.D.
SYLLABUS UNIT-I Environmental Pollution Waste Management UNIT-II Aim, Principles and Rules of First Aid First Aid Management Accident Prevention UNIT-III Emergency Services Emergency Evacuation UNIT-IV Health & Hygiene Housekeeping UNIT-V Safety norms while monitoring security operations Food Security
1. Environmental Pollution
UNDERSTANDING Environmental Pollution 04 September 2020
ENVIRONMENTAL POLLUTION - DEFINITION Contamination of the physical and biological components of the earth/ atmosphere system to such an extent that normal environmental processes are adversely affected
ENVIRONMENTAL POLLUTION Environmental Pollution : any undesirable change in physical, chemical , or biological characteristics of any component of the environment i.e. air, water, soil which can cause harmful effects on various forms of life or property. Pollutant : Any substance causing nuisance or harmful effects or uneasiness to the organisms, then that particular substance may be called as the pollutant. Pollution: I nfluence of any substance causing nuisance, harmful effects , and uneasiness to the organisms
T YPES OF POLLUTION Pollution can be of different types depending on the part of the environment that is getting polluted Air Pollution Water Pollution Land / soil Pollution Noise Pollution Plastic Pollution Thermal Pollution Visual Pollution Radioactive Contamination Light Pollution Littering
1. Air Pollution Release of pollutants like toxic gases, biological molecules, and particulate matter into the atmosphere. D erived from several sources including both natural processes and human activity. Volcanic eruptions, automobile, and industrial effluents, etc., Examples of air pollutants: Carbon monoxide, carbon dioxide, chlorofluorocarbons, aerosol sprays, etc. Highly detrimental to the health and well-being of all life forms on earth.
2 . Water Pollution Contamination of water bodies likes lakes, rivers, ponds, aquifers , etc., Most harmful types of pollution, have extremely disastrous consequences for all living beings using the contaminated water. M ajor volume of the all the pollutants produced on land end up in water bodies. Toxic wastes released by industries, pathogens released in sewage, harmful chemicals present in agricultural runoffs, etc. Contamination of water can lead to epidemics and even pandemics that can wipe out the population of an entire species or even more than one species. Thus, it has a highly adverse impact on the environment, society, and economy of a place.
3. Land/ Soil Pollution Leads to soil pollution or land degradation. S oil is essential to the growth of all plants including crops. Thus, a degradation in the soil quality translates to lower yields and poor health of crops grown on such soil. Industrial and agricultural chemicals are the common pollutants contaminating the soil.
4. Noise Pollution Environment is filled with unnecessary or unpleasant sounds that are harmful to animals and plants. Common sources: Transport vehicles, machinery, industries, loud music, people yelling, etc. In long-term can give rise to chronic diseases like cardiovascular diseases. P sychological health of people can also be affected by noise.
5. Plastic Pollution Caused by plastic accumulation in the environment. Plastic, a non-biodegradable substance, is extremely harmful to all life on earth. Every year, thousands of animals lose their lives due to plastic pollution by its ingestion or entanglement in plastic objects. Most of the plastic waste generated in the world end up in the oceans where they cause great harm to the marine ecosystem.
7. Visual Pollution Everyone loves to see clean and green spaces and beautiful vistas. When human activity installs ugly barriers to this vision of open and clutter-free landscapes. I nstallation of billboards, open storage of trash, networks of electric wires crisscrossing each other above the street, etc., create visual pollution. This type of pollution generates distraction, eye fatigues, diversity in opinions, and other psychological problems.
8. Radioactive Contamination Radioactive substances are present in areas where their presence is undesirable or unintended. Such substances are highly toxic to all life on earth. Radioactive substances trigger mutations in the genetic material of living organisms, leading to different types of cancers. Exposure to such toxins can also adversely impact the different systems of the body. Death or disfiguration are common effects of exposure to radioactive waste . Irresponsible management of such wastes or radioactive disasters are the common causes of radioactive contamination.
9. Light Pollution The pollution of the night environment by anthropogenic and artificial light. Caused by an excessive lighting of the streets, flood lights used in stadiums, lights used in an industrial area, etc. N egative effects include the spoilage of the aesthetic environment of a place, creating disturbances in the ecosystem, harming the health of living creatures.
10. Littering Waste products generated by humans is not disposed of properly. W aste can include anything that is discarded by humans after use like bottles, glass, packaging material, electronic waste, metal waste, etc. Some of these pollutants like electronics, batteries, tires, etc., are hazardous to the health of the environment. Chemicals from such wastes leach into the soil or enter the water bodies, they cause soil contamination and water pollution. Finally, these chemicals enter the bodies of organisms to cause disease and death .
WATER POLLUTION
Water Pollution can be defined as alteration in physical, chemical, or biological characteristics of water through natural or human activities and making it unsuitable for its designated use. Fresh Water present on the earth surface is put to many uses. It is used for drinking, domestic and municipal uses, agricultural, irrigation, industries, navigatio n, recreation. The used water becomes contaminated and is called waste water.
SOURCES OF WATER POLLUTION Most of Water Pollution is man made It may also occur naturally by addition of soil particles through erosion animal wastes and leaching of minerals from rocks The sources of water pollution can be classified as Municipal Waste Water Industrial Waste Inorganic Pollutants Organic Pollutants Agricultural Wastes Marine Pollution Thermal pollution
MUNICIPAL WASTE WATER
INDUSTRIAL WASTE The major source of water pollution is the waste water discharged from industries and commercial bodies, these industries are metallurgical, food processing T h e y chemical, indu s tries, discharge t e x t i l e , several p a per industries. organic and i n o r g a n i c p o ll u t a nt s . T h a t p r ov e hi g hl y t ox i c t o li v in g beings.
INDUSTRIAL WASTE
INORGANIC POLLUTANTS They include fine particles of different metals, chlorides, sulphates, oxides of iron, cadmium, acids and alkalies.
ORGANIC POLLUTANTS They Include oils, fats, phenols, organic acids grease and several other organic compounds
AGRICULTURAL WASTES Chemical fertilizers and pesticides have become essential for present day high yielding crops. Consequently , they have become a potential source of water pollution. These fertilizers contain major plants n u t r i e nt s m a i n l y nitrogen, phosphorous, and potassium. Excess fertilizers may reach the ground water by leaching or may be mixed with surface water of rivers, lakes and ponds by runoff and drainage.
MARINE POLLUTION Ocean are the final sink of all natural and manmade pollutants. Rivers discharge their pollutants into the sea. The sewage and garbage of costal cities are also dumped into the sea. The other sources include, discharge of oils, grease, detergents, and radioactive wastes from ships .
THERMAL POLLUTION Thermal Pollution of water is caused by the rise in temperature of water. The main source of thermal pollution are the thermal and nuclear power plants. The power generating plants use water as coolants and release hot water into the original source. Sudden rise in temperature kills fish and other aquatic animals.
AIR POLLUTION
Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or cause damage to the natural environment or built environment, into the atmosphere. A substance in the air that can cause harm to humans and the environment is known as an air pollutant.
CAUSES OF AIR POLLUTION Carbon dioxide-this happens because of Deforestation and fossil fuel burning. Sulfur dioxide –Due to the burning of sulfur containing compounds of fossil fuels. Sulfur oxides- very dangerous to humans at a high concentration. Sulfur in the atmosphere is responsible for acid rain.
CONSEQUENCES OF AIR POLLUTION CO2 is a good transmitter of sunlight, but it also p a rt iall y r e s t r i c ts i n fr a r e d r a d ia t io n goi ng b a ck f r o m the earth into space, which produces the so- called greenhouse effect that prevents a drastic cooling of the Earth during the night. CO2 in atmosphere --> GLOBAL WARMING
LAND POLLUTION
Land pollution is the demolition of Earth's land surfaces often caused by human activities and their misuse of land resources. It occurs when waste is not disposed properly. Urbanization and industrialization are major causes of land pollution.
CAUSES OF LAND POLLUTION Four Main causes of land pollution: Construction Agriculture Domestic waste Industrial Waste
CONSTRUCTION Buildings take up resources and land, the trees are chopped down and used to make buildings. Takes away the places for animals and other organisms to live.
AGRICULTURE As there are more and more people inhabiting the earth, food is in higher demand and so forests are chopped down and turned into farmland In addition, herbicides, pesticides, artificial fertilizers, animal manure are washed into the soil and pollute it.
DOMESTIC WASTE Tons of domestic waste is dumped every day. Some waste from homes, offices and industries can be recycled or burnt in incinerators . There is still a lot of garbage, such as refrigerators and washing machines that are dumped in landfills simply because they cannot be reused in anyway, nor recycled .
INDUSTRIAL WASTE Plastics factories, chemical plants, oil refineries, nuclear waste disposal activity, large animal farms, coal-fired power plants, metals production factories and other heavy industry all contribute to land pollution.
NOISE POLLUTION
Noise pollution is excessive, displeasing human, animal, or machine-created environmental noise that disrupts the activity or balance of human or animal life. Sound becomes undesirable when it disturbs the normal activities such as working, sleeping, and during conversations. World Health Organization stated that “Noise must be recognized as a major threat to human well- being”
SOURCES OF NOISE POLLUTION Transportation systems are the main source of noise pollution in urban areas. Construction of buildings, highways, and streets cause a lot of noise, due to the usage of air compressors, bulldozers, loaders, dump trucks, and pavement breakers. Industrial noise also adds to the already unfavorable state of noise pollution. Loud speakers, plumbing, boilers, generators, air conditioners, fans, and vacuum cleaners add to the existing noise pollution.
EFFECTS OF NOISE POLLUTION According to the USEPA, there are direct links between noise and health. Also, noise pollution adversely affects the lives of millions of people. Noise pollution can damage physiological and psychological health. High blood pressure, stress related illness, sleep disruption, hearing loss, and productivity loss are the problems related to noise pollution. It can also cause memory loss, severe depression, and panic attacks.
SOLUTIONS FOR NOISE POLLUTION Planting bushes and trees in and around sound generating sources is an effective solution for noise pollution. R e g u lar s e r vicing a n d t u n i ng o f a u t o m o b iles can effectively reduce the noise pollution Social a w a r e n e s s p r o gr a m s s hou l d be t a k e n up t o e d u c a t e t he public about the causes and effects of noise pollution. W o r k e r s s h o u l d be p r ovi d e d w i t h e q u i p m e n t s s uch as ear plugs and earmuffs for hearing protection.
Similar to automobiles, lubrication of the machinery and servicing should be done to minimize noise generation. Soundproof doors and windows can be installed to block unwanted noise from outside. R e g u l a t i o ns s h o u l d be i m p o s ed t o r e s t r i c t the u sag e o f p la y loud s p e a k ers in c r ow d e d a r e a s a nd publ i c pl a c e s . Factories and industries should be located far from the residential areas.
WAYS TO STOP POLLUTION We believe that it is the responsible thing to do to increase recycling. It is just like doing laundry and separating blacks and colors. The residents of the country should also try and do their part and put in at least one day of litter picking up.
10 Most Polluted Countries 1 . Bangladesh: Main pollutants are air and water pollution, groundwater contamination, noise pollution, and solid wastes. Dhaka City is one of the most polluted cities in the world. Air pollution brickmaking industry. 2. Pakistan : growing number of vehicles on the roads, large-scale losses of trees, smoke from bricks kiln and steel mills, and the burning of garbage 3. India: 21 of 30 most polluted cities are in India. Most polluted city in the world is Kanpur, medical college receives about 600 respiratory illness patients per month. Sources vehicles, burning of coal and wood, dust storms, and forest fires. Rural areas rely on wood and dung for cooking and heating, burning of crop stubble. 4. Afghanistan : air pollution, drinking water polluted 5. Bahrain: air pollution from dust and sand storms 6. Mongolia : burning coal and other biomass, such as wood or crop residue, in stoves. 7. Kuwait 8. Nepal 9. United Arab Emirates 10. Nigeria
AQI ( Air Quality Index) Used by government agencies to communicate to the public how polluted the air currently is or how polluted it is forecasted. Public health risks increase as the AQI rises. Different countries have their own air quality indices, corresponding to different national air quality standards.
What are the six pollutants of air quality? Carbon Monoxide - CO Lead Nitrogen Oxides - NO X Ground-level Ozone – O 3 Particle Pollution (Particulate Matter) - PM Sulphur Oxides - SO X
AQI (Air Quality Index) Index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. F ocuses on health effects experienced within a few hours or days after breathing polluted air. Ground-level ozone and airborne particles are the two pollutants that pose the greatest threat to human health in this country. For each of the pollutants, EPA has established national air quality standards to protect public health
How is AQI calculated? EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act: AQI value is calculated or measured as average per 24h of each pollutant is calculated according to a formula published by the MEP. PARTICLE POLLUTION - PM 2.5 and PM 10 SULFUR DIOXIDE - SO 2 NITROGEN DIOXIDE - NO 2 CARBON MONOXIDE - CO GROUND-LEVEL OZONE - O 3 concentration is measured as the maximum 1h average and the maximum 24h moving average.
National Air Quality Index AQI Remark Colour Code Possible Health Impacts 0-50 Good Green Minimal impact 51-100 Satisfactory Light Green Minor breathing discomfort to sensitive people 101-200 Moderate Yellow Breathing discomfort to the people with lungs, asthma and heart diseases 201-300 Poor Orange Breathing discomfort to most people on prolonged exposure 301-400 Very Poor Red Respiratory illness on prolonged exposure 401-500 Severe Purple Affects healthy people and seriously impacts those with existing diseases
PM2.5 (fine particulate matter 2.5) PM2.5 is an air pollutant. tiny particles or droplets in the air that are two and one-half microns or less in width. Come from: car, truck, bus, and off-road vehicle exhausts burning of fossil fuels such as wood, heating oil, or coal indoor sources such as smoking tobacco, cooking, burning candles or using fireplaces. C oncern for people’s health when levels in the air are high. Reduce visibility and make air appear hazy when levels are elevated. Some cities issue a PM2.5 Health Advisory when conditions are considered to be unhealthy for sensitive groups.
The Central Pollution Control Board (CPCB) , was constituted in September, 1974 under the Water (Prevention and Control of Pollution) Act, 1974. Further, CPCB was entrusted with the powers and functions under the Air (Prevention and Control of Pollution) Act, 1981.
Central Pollution Control Board (CPCB) statutory organisation, was constituted in September, 1974 under the Water (Prevention and Control of Pollution) Act, 1974 entrusted with the powers and functions under the Air (Prevention and Control of Pollution) Act, 1981. It serves as a field formation and also provides technical services to the Ministry of Environment and Forests of the provisions of the Environment (Protection) Act, 1986
Functions of Pollution Control Board Principal Functions of the CPCB, as per Water (Prevention and Control of Pollution) Act, 1974, and the Air (Prevention and Control of Pollution) Act, 1981. Its function are: (i) To promote cleanliness of streams and wells in different areas of the States by prevention, control and abatement of water pollution. (ii) To improve the quality of air and to prevent, control or abate air pollution in the country.
Functions of Central Pollution Control Board: 1) Advice the Central Government, on any matter concerning the improvement of the quality of air and prevention control or abatement of air pollution/water pollution. 2) Provide technical assistance and guidance to the state boards carry out and sponsor investigations and research relating to problems of air pollution/water pollution and its control and abatement.
3) Plan and cause to be execute a nation-wide programme through mass media for the provision, control or abatement of air/water pollution. 4) Organize through mass media a comprehensive programme towards prevention, control and abatement of air pollution or water pollution.
5) Collect, compile and publish technical and statistical data relating to air pollution/water pollution and the measures devised for its effective prevention, control and abatement and prepared manuals . 6)Collect and disseminate information in respect of matters relating to air/water pollution.
Functions of S tate Pollution Control Board: 1) To collect information relating water/air pollution and to encourage, conduct, participate in investigations and research relating to problems of water pollutions. 2) To plan a comprehensive programme through mass media for prevention, control or abatement of air /water pollution. 3) To advice the Central and State Government, in any matter concerning the prevention, control or abatement of air/water pollution.
4)To inspect sewage or trade effluents, works and plants for the treatment of sewage or trade effluent. 5) To evolve economical and reliable methods of effluents of sewage and trade effluents. 6) To evolve methods of utilization of sewage and suitable trade effluents in agriculture. Functions of state Pollution Control Board contd.
7) To evolve efficient methods of disposal of sewage and trade effluents on land 8) To lay down standards of treatment of sewage and trade effluents, to be discharged into any particular stream (prevention, control, abatement of discharged of wastes into stream or wells) Functions of state Pollution Control Board contd.
Environmental Acts & Rules The Environment (Protection) Act, 1986: for protection and improvement of the environment E mpowers the Central Government to establish authorities with the mandate of preventing environmental pollution in all its forms and T o tackle specific environmental problems that are peculiar to different parts of the country. The Water (Prevention and Control of Pollution) Act, 1974: for prevention and control of water pollution, and for maintaining or restoring of wholesomeness of water in the country. The Water (Prevention and Control of Pollution) Cess Act, 1977: to levy and collection of a cess on water consumed by persons operating and carrying on certain types of industrial activities. Collected to augment the resources of the Central Board and the State Boards for the prevention and control of water pollution constituted under the Water (Prevention and Control of Pollution) Act, 1974.
5. Air (Prevention and Control of Pollution) Act, 1981 to provide for the prevention, control and abatement of air pollution in India. 6. Noise Pollution (Regulation and Control) Rules, 2000 under the Environment (Protection) Act, 1986. to regulate and control noise producing and generating sources for maintaining the ambient air quality standards in respect of noise increasing ambient noise levels in public places various sources like industrial activity, construction activity, fire crackers, sound producing instruments, generator sets, loud speakers, public address systems, music systems, vehicular horns and other mechanical devices have harmful effects on human health and the psychological well being of the people
W ays to reduce pollution on earth 1. Practice the 3Rs Concept. Reduce usage of air-conditioners as it will release harmful gases, for ozone-depleting chlorofluorocarbons which will result in reducing air pollution. Reuse reusable items like plastic bags, bottles, boxes etc. Recycle recyclable items such as glass, cans, and newspapers. 2. Reducing the usage of vehicles on road. The more the usage of vehicles, the more the harmful gases released into the air such as hydrocarbons, nitrogen oxides, carbon monoxides, and sulphur dioxides. Walk, cycle, car-pooling, usage of public transport. 3. Create awareness among the citizens . Awareness campaigns eg “Go Green”, “Earth Hour”; education 4. Enforcing the laws. government role, penalties to offenders, strict monitor