This document discusses various types and sources of water pollution. It identifies major pollutants like infectious agents, oxygen-demanding waste, and inorganic chemicals that come from sources such as sewage, industry, and agriculture. These pollutants can contaminate both surface water and groundwater, and have negative effects on ecosystems and human health. The document also examines solutions for preventing and treating water pollution through various regulatory, technological, and natural approaches.
Darshit gajjar(Software eng)
This water pollution but I don't like environment .but I make ppt bacuase our sar punish me.so that all guys watch my ppt my ppt is best for other.i am software eng .so that I make my ppt of IT realeted so that watch my environment ppt
I AM HAFIZ MUHAMMAD WASEEM from mailsi vehari
BSc from science college Multan
MSC university of education Lahore
i love Pakistan and my teachers and my parents
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Darshit gajjar(Software eng)
This water pollution but I don't like environment .but I make ppt bacuase our sar punish me.so that all guys watch my ppt my ppt is best for other.i am software eng .so that I make my ppt of IT realeted so that watch my environment ppt
I AM HAFIZ MUHAMMAD WASEEM from mailsi vehari
BSc from science college Multan
MSC university of education Lahore
i love Pakistan and my teachers and my parents
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
2. Water Pollution: Types, Effects,
and Sources
What is water pollution?
Major types of pollutants, sources and effects
Point and nonpoint sources
Is the water safe to drink?
4. Clean Zone
Decomposition
Zone
Septic Zone
Recovery
Zone
Clean Zone
Normal clean water organisms
(trout, perch, bass,
mayfly, stonefly)
Trash fish
(carp, gar,
leeches)
Fish absent,
fungi,
sludge
worms,
bacteria
(anaerobic)
Trash fish
(carp, gar,
leeches)
Normal clean water organisms
(trout, perch, bass,
mayfly, stonefly)
8 ppm
Dissolved
oxygen
(ppm)
Biological
oxygen
demand
8 ppm
Types of
organisms
Pollution in Streams
5. Benefits of Floodplains
Highly productive wetlands
Provide natural flood and erosion control
Maintain high water quality
Recharge groundwater
Fertile soils
Nearby rivers for use and recreation
Flatlands for urbanization and farming
6. Dangers of Floodplains and Floods
Deadly and destructive
Human activities worsen floods
Failing dams and water diversion
Bangladesh
8. Oxygen
released by
vegetation
Diverse
ecological
habitat
Evapotranspiration
Trees reduce soil
erosion from heavy
rain and wind
Agricultural
land
Steady
river flow
Leaf litter
improves
soil fertility
Tree roots stabilize soil
and aid water flow
Vegetation releases
water slowly and
reduces flooding
Forested Hillside
Flooding After Deforestation of a
Hillside
9. Tree plantation
Evapotranspiration decreases
Ranching accelerates soil
erosion by water and wind
Winds remove
fragile topsoil
Gullies and
landslides
Heavy rain leaches nutrients
from soil and erodes topsoil
Rapid runoff
causes flooding
After Deforestation
Roads
destabilize
hillsides
Agriculture land
is flooded and
silted up
Silt from erosion blocks rivers and
reservoirs and causes flooding downstream
Flooding After Deforestation of a
Hillside
10. Reducing Flood Risks
Channelization
Levees (floodwalls)
Dams
Protect and restore wetlands
Identify and manage flood-prone areas
Precautionary approach
11. Lake Pollution
Dilution less effective than with streams
Stratification in lakes and relatively little flow hinder rapid dilution of
pollutants
Lakes more vulnerable to pollutants than streams
How pollutants enter lakes
Eutrophication: causes and effects
Oligotrophic and eutrophic lakes
Cultural eutrophication
Preventing or removing eutrophication
13. Groundwater Pollution: Causes
and Persistence
Sources of groundwater pollution
Slow flowing: slow dilution and dispersion
Consequences of lower dissolved oxygen
Fewer bacteria to decompose wastes
Cooler temperatures: slow down chemical reactions
“Degradable” and nondegradable wastes in groundwater
14. Coal strip
mine runoff
Pumping
well
Waste lagoon
Accidental
spills
Groundwater
flow
Confined
aquifer
Discharge
Leakage
from faulty
casing
Hazardous
waste injection
well
Pesticides
and fertilizers
Gasoline station
Buried gasoline
and solvent tank
Sewer
Cesspool
septic tank
De-icing
road salt
Water
pumping well
Landfill
Polluted air
Groundwater Pollution
15. Extent of Groundwater Pollution
Not much is known about groundwater pollution
Organic contaminants, including fuel leaks
Arsenic
Protecting groundwater: Prevention is best
16. Pump nanoparticles of
inorganic compounds to
remove pollutants (may be the
cheapest, easiest, and most
effective method but is still
being developed)
Find substitutes for toxic
chemicals
Keep toxic chemicals out of the
environment
Install monitoring wells near
landfills and underground tanks
Require leak detectors on
underground tanks
Ban hazardous waste disposal
in landfills and injection wells
Inject microorganisms to clean
up contamination (less
expensive but still costly)
Store harmful liquids in
aboveground tanks with leak
detection and collection systems
Prevention Cleanup
Pump to surface, clean,
and return to aquifer
(very expensive)
Solutions
Groundwater Pollution
Preventing and Cleaning Up
Pollution in Groundwater
17. Ocean Pollution
How much pollution can oceans tolerate?
Some pollutants degrade and dilute in oceans
Ocean dumping controversies
18. Industry
Nitrogen oxides from
autos and smokestacks;
toxic
chemicals, and heavy
metals in effluents flow
into bays and estuaries.
Cities
Toxic metals and
oil from streets and
parking lots pollute
waters; sewage
adds nitrogen and
phosphorus.
Urban sprawl
Bacteria and viruses from sewers
and septic tanks contaminate
shellfish beds and close beaches;
runoff of fertilization from lawns
adds nitrogen and phosphorus.
Construction sites
Sediments are washed into waterways,
choking fish and plants, clouding
waters, and blocking sunlight.
Farms
Run off of pesticides, manure,
and fertilizers adds toxins and
excess nitrogen and phosphorus.
Red tides
Excess nitrogen causes
explosive growth of toxic
microscopic algae, poisoning
fish and marine mammals.
Healthy zone
Clear, oxygen-rich waters
promote growth of plankton
and sea grasses, and support fish.
Toxic sediments
Chemicals and toxic metals
contaminate shellfish beds,
kill spawning fish, and
accumulate in the tissues
of bottom feeders.
Closed
shellfish beds
Closed
beach Oxygen-depleted
zone
Coastal Water Pollution
Oxygen-depleted zone
Sedimentation and algae overgrowth reduce sunlight,
kill beneficial sea grasses, use up oxygen, and
degrade habitat.
20. Chesapeake Bay
Largest US estuary
Pollution “sink”
Oxygen depletion
Chesapeake Bay
Program
21. Effects of Oil on Ocean Life
Crude and refined
petroleum
Tanker accidents and
blowouts
Exxon Valdez
Volatile hydrocarbons kill
larvae
Tar-like globs coat birds
and marine mammals
Oil destroys insulation and
buoyancy
Heavy oil sinks and kills
bottom organisms
Coral reefs die
Slow recovery
Oil slicks ruin beaches
Limited effectiveness of
clean up methods
22. Prevention Cleanup
Ban dumping of wastes and
sewage by maritime and cruise
ships in coastal waters
Reduce input of toxic pollutants
Separate sewage and
storm lines
Regulate coastal
development
Recycle used oil
Require double hulls for oil tankers
Require at least secondary
treatment of coastal sewage
Use wetlands, solar-aquatic, or
other methods to treat sewage
Sprinkle nanoparticles over an
oil or sewage spill to dissolve
the oil or sewage without
creating harmful byproducts
(still under development)
Protect sensitive areas from
development, oil drilling, and oil
shipping
Ban ocean dumping of sludge and
hazardous dredged material
Improve oil-spill cleanup
capabilities
Solutions
Coastal Water Pollution
Preventing and Cleaning Up
Pollution in Coastal Waters
23. Preventing Nonpoint Source
Pollution
Mostly agricultural wastes
Use vegetation to reduce soil erosion
Reduce fertilizer use
Use plant buffer zones around fields
Integrated pest management: Only use pesticides when necessary
Use plant buffers around animal feedlots
Keep feedlots away from slopes, surface water and flood zones
24. Laws for Reducing Point Source
Pollution
Clean Water Act
Water Quality Act
25. Sewage Treatment Systems
Sewage treatment in rural and suburban areas
Septic tanks
Primary (physical) sewage treatment
Secondary (biological) sewage treatment
Urban sewage treatment (Clean Water Act)
Sewage treatment facilities in many cities fail to meet federal
standards
Bleaching and disinfection
Disinfectants: chlorine, ozone, and ultraviolet radiation
26. Typical Septic Tank System
Household
wastewater
Perforated pipe
Distribution box
(optional)
Septic tank with manhole
(for cleanout)
Drain
field
Vent pipe
Nonperforated pipe
Gravel or
crushed
stone
27. Primary and Secondary Sewage
Treatment
Raw sewage
from sewers
Bar screen Grit chamber Settling tank Aeration tank Settling tank
Chlorine
disinfection tank
Sludge
Sludge
digester
Activated sludge
Air pump
(kills
bacteria)
To river,
lake,
or ocean
Sludge drying bed
Disposed of
in landfill or
ocean or
applied to
cropland,
pasture, or
rangeland
Primary Secondary
28. Improving Sewage Treatment
Systems that exclude hazardous wastes
Non-hazardous substitutes
Composting toilet systems
Working with nature to treat sewage
Using wetlands to treat sewage
30. Should the Clean Water Act be
Strengthened?
Yes: environmentalists
No: farmers,
libertarians,
manufacturers, and
developers
State and local officials want more discretion
31. Drinking Water Quality
Purification of urban drinking water
Purification of drinking water in
developing countries
Bottled water
32. Solutions
Water Pollution
•Prevent groundwater contamination
•Greatly reduce nonpoint runoff
•Reuse treated wastewater for
irrigation
•Find substitutes for toxic pollutants
•Work with nature to treat sewage
•Practice four R's of resource use
(refuse, reduce, recycle, reuse)
•Reduce resource waste
•Reduce air pollution
•Reduce poverty
•Reduce birth rates
What Can You Do?
Water Pollution
• Fertilize your garden and yard plants
with manure or compost instead of
commercial inorganic fertilizer.
• Minimize your use of pesticides.
• Never apply fertilizer or pesticides near
a body of water.
• Grow or buy organic foods.
• Compost your food wastes.
• Do not use water fresheners in toilets.
• Do not flush unwanted medicines
down the toilet.
• Do not pour pesticides, paints,
solvents, oil, antifreeze, or other
products containing harmful chemicals
down the drain or onto the ground.