This document discusses various types and sources of water pollution. It defines water pollution as changes in water quality from physical, chemical, or biological factors that harm living organisms. The main types of water pollutants discussed are infectious agents, oxygen-demanding wastes, inorganic pollutants, organic chemicals, sediment, and thermal pollution. Agricultural runoff, industrial waste, and mining are identified as leading causes of water pollution. Prevention and treatment of sewage as well as regulation are discussed as ways to reduce water pollution.
Environmental science Module 2 Topic. This PPT is not a work of mine and was provided by our college professor during our graduation, so I am not sure about the original author. The credit goes to the Original author.
This presentation contains enormous information about all the root-causes of different sorts of water pollution, point of origin of various pollutants. It also provides account for remedial measures for mitigating the ill effects of water pollution and the legislation for controlling it.
Environmental science Module 2 Topic. This PPT is not a work of mine and was provided by our college professor during our graduation, so I am not sure about the original author. The credit goes to the Original author.
This presentation contains enormous information about all the root-causes of different sorts of water pollution, point of origin of various pollutants. It also provides account for remedial measures for mitigating the ill effects of water pollution and the legislation for controlling it.
The first step toward change is awareness, The second step is acceptance. If we become united and raise awareness to prevent water pollution, we will get a healthy environment.. Why and How Water Pollution occurred has been clearly focused here. It can be present in any seminar, program or educational course purpose.
It is no secret that a majority of the world’s population consumes unclean water. But how does water get polluted? What happens to people or other living creatures when they consume contaminated water? The power point presentation that follows will allow the teacher to show his or her students the different ways water can get polluted, how much man is responsible for the extent of water pollution, and what the impact of this pollution is on all living things, especially man. The teacher can also use this presentation to generate a discussion in class on possible solutions to this problem. Is it possible to treat contaminated water in some way to make it consumable? Are there ways in which we can prevent or avoid at least certain kinds of water pollution?
most important topic for more clearance of water quality standards which covers latest Indian and WHO guidelines and provides a real scenario of water standards in India and the recent advances made for purification of water in India and worldwide. The presentation is little bit lengthy but deals with all required aspects in short.
This PPT contains definition, types, signs, source and effects of water pollution. Prevention of water pollution and some data of water pollution of world. It contains pictures so high school grade student can also go through this PPT. Although It is for Bachelor's level.
The first step toward change is awareness, The second step is acceptance. If we become united and raise awareness to prevent water pollution, we will get a healthy environment.. Why and How Water Pollution occurred has been clearly focused here. It can be present in any seminar, program or educational course purpose.
It is no secret that a majority of the world’s population consumes unclean water. But how does water get polluted? What happens to people or other living creatures when they consume contaminated water? The power point presentation that follows will allow the teacher to show his or her students the different ways water can get polluted, how much man is responsible for the extent of water pollution, and what the impact of this pollution is on all living things, especially man. The teacher can also use this presentation to generate a discussion in class on possible solutions to this problem. Is it possible to treat contaminated water in some way to make it consumable? Are there ways in which we can prevent or avoid at least certain kinds of water pollution?
most important topic for more clearance of water quality standards which covers latest Indian and WHO guidelines and provides a real scenario of water standards in India and the recent advances made for purification of water in India and worldwide. The presentation is little bit lengthy but deals with all required aspects in short.
This PPT contains definition, types, signs, source and effects of water pollution. Prevention of water pollution and some data of water pollution of world. It contains pictures so high school grade student can also go through this PPT. Although It is for Bachelor's level.
Presentation for project work!
Presentation credits:
Mr. Shivam Saha
Dr. Tathagata Deb
.
Contents:
Introduction
Types of Water Pollution
Sewage
Disease-causing agents
Sediment pollution
Inorganic plant and algal nutrients
Organic compounds
Inorganic chemicals
Thermal pollution
Water Quality Today
Improving Water Quality
Laws Controlling Water Pollution
Conclusion
Prof Graham Mills - The Fate of Pharmaceutical Residues in the Aquatic Enviro...onthewight
Professor Graham Mills presented his talk "The Fate of Pharmaceutical Residues in the Aquatic Environment"
A full background of what contaminates water, from Pharmacology and Agriculture. People passing medicines they have taken or disposing of them by throwing them down the toilet are causing major changes to fish and other water dwelling creatures.
- October 2014 - Cafe Scientifique Isle of Wight
Artificial Reefs by Kuddle Life Foundation - May 2024punit537210
Situated in Pondicherry, India, Kuddle Life Foundation is a charitable, non-profit and non-governmental organization (NGO) dedicated to improving the living standards of coastal communities and simultaneously placing a strong emphasis on the protection of marine ecosystems.
One of the key areas we work in is Artificial Reefs. This presentation captures our journey so far and our learnings. We hope you get as excited about marine conservation and artificial reefs as we are.
Please visit our website: https://kuddlelife.org
Our Instagram channel:
@kuddlelifefoundation
Our Linkedin Page:
https://www.linkedin.com/company/kuddlelifefoundation/
and write to us if you have any questions:
info@kuddlelife.org
Climate Change All over the World .pptxsairaanwer024
Climate change refers to significant and lasting changes in the average weather patterns over periods ranging from decades to millions of years. It encompasses both global warming driven by human emissions of greenhouse gases and the resulting large-scale shifts in weather patterns. While climate change is a natural phenomenon, human activities, particularly since the Industrial Revolution, have accelerated its pace and intensity
Willie Nelson Net Worth: A Journey Through Music, Movies, and Business Venturesgreendigital
Willie Nelson is a name that resonates within the world of music and entertainment. Known for his unique voice, and masterful guitar skills. and an extraordinary career spanning several decades. Nelson has become a legend in the country music scene. But, his influence extends far beyond the realm of music. with ventures in acting, writing, activism, and business. This comprehensive article delves into Willie Nelson net worth. exploring the various facets of his career that have contributed to his large fortune.
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Introduction
Willie Nelson net worth is a testament to his enduring influence and success in many fields. Born on April 29, 1933, in Abbott, Texas. Nelson's journey from a humble beginning to becoming one of the most iconic figures in American music is nothing short of inspirational. His net worth, which estimated to be around $25 million as of 2024. reflects a career that is as diverse as it is prolific.
Early Life and Musical Beginnings
Humble Origins
Willie Hugh Nelson was born during the Great Depression. a time of significant economic hardship in the United States. Raised by his grandparents. Nelson found solace and inspiration in music from an early age. His grandmother taught him to play the guitar. setting the stage for what would become an illustrious career.
First Steps in Music
Nelson's initial foray into the music industry was fraught with challenges. He moved to Nashville, Tennessee, to pursue his dreams, but success did not come . Working as a songwriter, Nelson penned hits for other artists. which helped him gain a foothold in the competitive music scene. His songwriting skills contributed to his early earnings. laying the foundation for his net worth.
Rise to Stardom
Breakthrough Albums
The 1970s marked a turning point in Willie Nelson's career. His albums "Shotgun Willie" (1973), "Red Headed Stranger" (1975). and "Stardust" (1978) received critical acclaim and commercial success. These albums not only solidified his position in the country music genre. but also introduced his music to a broader audience. The success of these albums played a crucial role in boosting Willie Nelson net worth.
Iconic Songs
Willie Nelson net worth is also attributed to his extensive catalog of hit songs. Tracks like "Blue Eyes Crying in the Rain," "On the Road Again," and "Always on My Mind" have become timeless classics. These songs have not only earned Nelson large royalties but have also ensured his continued relevance in the music industry.
Acting and Film Career
Hollywood Ventures
In addition to his music career, Willie Nelson has also made a mark in Hollywood. His distinctive personality and on-screen presence have landed him roles in several films and television shows. Notable appearances include roles in "The Electric Horseman" (1979), "Honeysuckle Rose" (1980), and "Barbarosa" (1982). These acting gigs have added a significant amount to Willie Nelson net worth.
Television Appearances
Nelson's char
Epcon is One of the World's leading Manufacturing Companies.EpconLP
Epcon is One of the World's leading Manufacturing Companies. With over 4000 installations worldwide, EPCON has been pioneering new techniques since 1977 that have become industry standards now. Founded in 1977, Epcon has grown from a one-man operation to a global leader in developing and manufacturing innovative air pollution control technology and industrial heating equipment.
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
UNDERSTANDING WHAT GREEN WASHING IS!.pdfJulietMogola
Many companies today use green washing to lure the public into thinking they are conserving the environment but in real sense they are doing more harm. There have been such several cases from very big companies here in Kenya and also globally. This ranges from various sectors from manufacturing and goes to consumer products. Educating people on greenwashing will enable people to make better choices based on their analysis and not on what they see on marketing sites.
Altered Terrain: Colonial Encroachment and Environmental Changes in Cachar, A...PriyankaKilaniya
The beginning of colonial policy in the area was signaled by the British annexation of the Cachar district in southern Assam in 1832. The region became an alluring investment opportunity for Europeans after British rule over Cachar, especially after the accidental discovery of wild tea in 1855. Within this historical context, this study explores three major stages that characterize the evolution of nature. First, it examines the distribution and growth of tea plantations, examining their size and rate of expansion. The second aspect of the study examines the consequences of land concessions, which led to the initial loss of native forests. Finally, the study investigates the increased strain on forests caused by migrant workers' demands. It also highlights the crucial role that the Forest Department plays in protecting these natural habitats from the invasion of tea planters. This study aims to analyze the intricate relationship between colonialism and the altered landscape of Cachar, Assam, by means of a thorough investigation, shedding light on the environmental, economic, and societal aspects of this historical transformation.
2. 2
Definition = physical, chemical, biological changes in
water quality that adversely affect living organisms.
(i.e., degradation)
Types:
Infectious Agents
Oxygen-Demanding Wastes
Inorganic Pollutants
Organic Chemicals
Sediment (Particulates)
Thermal Pollution
3. 3
Infectious Agents
Infectious Agents = pathogenic organisms. Water-borne diseases
from infectious agents include typhoid, cholera, bacterial and
amoebic dysentery, polio, infectious hepatitis, guinea worm
and schistosomiasis. Due to lack of sanitation.
Analyze coliform
bacteria (E. coli).
Presume if coliform
bacteria are present,
infectious pathogens are
also present.
4. 4
Key Concepts
Types, sources, and effects of water pollutants
Major pollution problems of surface water
Major pollution problems of groundwater
Reduction and prevention of water pollution
Drinking water quality
5. 5
Types, Effects, and Sources of Water
Pollution
• Water is polluted by infectious bacteria, inorganic
and organic chemicals, and excess heat.
• Water pollution is any chemical, biological, or
physical change in water quality that has a harmful
effect on living organisms.
• The WHO estimates that 3.4 million people die
prematurely each year from waterborne diseases.
• In the U.S., an estimated 1.5 million people a year
become ill from infectious agents.
6. 6
• Scientists monitor water quality by using bacterial
counts, chemical analysis, and indicator organisms.
• One method of measuring water quality involves
measuring the number of colonies of fecal coliform
bacteria present in a water sample.
• Drinking water should not contain any colonies/100
milliliters,
• Chemical analysis includes checking inorganic and
organic chemicals present, sediment content, and
turbidity of water.
• Indicator species are living organisms that are
monitored to determine levels of pollution.
7. 7
Sources of Water Pollution
Point sources
Nonpoint sources
Water quality
8. Supply of Water Resources
Freshwater Readily accessible freshwater
Biota
0.0001%
Rivers
0.0001%
Atmospheric
water vapor
0.0001%
Lakes
0.0007%
Soil
moisture
0.0005%
Groundwater
0.592%
Ice caps
and glaciers
0.592%
0.014%
9. 9
Inorganic Pollutants
Nonmetallic Salts:
Arsenic from mining or drainage of desert soils
Causes: - anemia
- cancer
- death.
Sodium Chloride: Salinization
Acids:
Sulfur and nitrogen compounds from coal.
Causes: - pH changes which affect species
- leaches aluminum
11. Use of Water Resources
Humans use about 54% of reliable runoff
Agriculture
Industry
Domestic
Power plants
Industry 11%
Public 10%
Power
cooling
38%
Agriculture
38%
12. 12
Point and Nonpoint Sources
NONPOINT SOURCES
Urban streets
Suburban
development
Wastewater
treatment
plant
Rural homes
Cropland
Factory
Animal feedlot
POINT
SOURCES
13. 13
Sources of water pollution
The leading sources of water pollution are
agriculture, industries, and mining.
1. Agricultural activities are the leading cause of
water pollution from
erosion, overgrazing, fertilizers and
pesticides, and excess salt from irrigated soils.
2. Industrial facilities are another large source of
water pollution, and mining is a third source.
14. 14
• One of every five people in the world lacks access
to safe drinking water.
• Ninety-five percent of people in developed
countries and 74% of people in developing
countries have access to clean drinking water.
• In a warmer world, too much rain and too little
rain can increase water pollution.
15. 15
Pollution of Freshwater Streams
Streams can recover from moderate levels of
degradable water pollutants if the flows are not
reduced.
1. A combination of dilution and biodegradation can
allow recovery of stream pollution
2. The breakdown of pollutants by bacteria creates
an oxygen sag curve. Organisms that have a high
oxygen demand can’t survive in the curve.
3. Volume of the stream, volume of wastes
entering, flow rate, temperature, and pH levels all
affect how great a sag curve is produced.
17. 17
Water Pollution: Now
Most developed countries have reduced point source
pollution, but toxic chemicals and pollution from
non-point sources are still problems.
Stream pollution in most developing countries is a
serious and growing problem. Half of the world’s
500 major rivers are heavily polluted, and most of
them run through developing countries where
waste treatment is minimal or nonexistent.
For example: Religious beliefs, cultural traditions,
poverty, little economic development, and a large
population interact to cause severe pollution of the
Ganges River in India.
19. 19
Groundwater Pollution: Causes
Low flow rates Few bacteria
Cold temperatures
Coal strip
mine runoff
Pumping
well
Waste lagoon
Accidental
spills
Groundwater
flow
Confined aquifer
Discharge
Leakage from faulty
casing
Hazardous waste injection well
Pesticides
Gasoline
station
Buried gasoline
and solvent tank
Sewer
Cesspool
septic tank
De-icing
road salt
Water pumping
well Landfill
Low oxygen
20. 20
Pollution of Groundwater
Experts rate groundwater pollution as a low-risk
ecological problem; it is rated as a high-risk
health problem.
The extent of groundwater contamination is
generally unknown
Prevention is the most effective and affordable way
to protect groundwater from pollutants.
22. Problems with Using Groundwater
Water lable lowering
Depletion
Subsidence
Saltwater intrusion
Chemical contamination
Reduced stream flows
23. Groundwater Pollution
• >70,000 chemicals are used not; effects of
many are not known
• Each year another 700-800 new chemicals are
produced
• 55 million tons of hazardous chemical wastes are
produced in the US each year
• The 20 most abundant compounds in
groundwater at industrial waste disposal sites
include TCE, benzene, vinyl chloride…all are
carcinogens, and also affect liver, brain, and
nervous system
24. Kinds of Water Pollution
• Inorganic Pollutants
• Organic Pollutants
• Biologic Pollutants
26. Inorganic Pollutants
• 3 groups
• 1) Produce no health effects until a threshold
concentration is exceeded—e.g., NO3 at
, 50mg/liter; at higher levels:
methaemoglobinaemia
• 2) No threshold—e.g.—genotoxic substances:
some natural and synthetic organic
compounds, microorganic compunds, some
pesticides, arsenic
• 3) Essential to diets: F, I, Se—absence causes
problems, but too much also causes problems
27. Inorganic Trace Contaminants
• Mercury—methyl Hg and dimethyl Hg in
fish—probably most significant path to
humans—Minamata Bay, Japan, 1950’s
• Rhine River drains 185,000 sq km—heavily
polluted by 1970’s
• Lead—toxicity has been known for a long
time
– 1859 book
– Tetraethyl lead—anti-knowck additive for
gas, 1930-1966
28.
29. 29
Oil Spills
Sources: offshore wells,
tankers, pipelines and
storage tanks
Effects: death of organisms, loss
of animal insulation and
buoyancy
Significant economic impacts
Mechanical cleanup methods: skimmers and blotters
Chemical cleanup methods: coagulants and dispersing
agents
30. 30
Solutions: Preventing and Reducing
Surface Water Pollution
Nonpoint Sources Point Sources
Reduce runoff
Buffer zone vegetation
Reduce soil erosion
Clean Water Act
Water Quality Act
31. Reducing Water Pollution through
Sewage Treatment
• Primary and Secondary sewage treatment.
Figure 20-19