PARTICULATE MATTER IN DETAIL 2017 (UPDATED) AMIR HASSAN
Environmental air pollution contain the most toxic substance called particulate matter discuss in detail by AMIR HASSAN OF POST GRADUATE COLLAGE MARDAN KPK (PAKISTAN)
The presentation is all about the environment around us and its ecology which consists of acid rain as a major problem of the environment.
Discussing its causes, effects & solutions.
PARTICULATE MATTER IN DETAIL 2017 (UPDATED) AMIR HASSAN
Environmental air pollution contain the most toxic substance called particulate matter discuss in detail by AMIR HASSAN OF POST GRADUATE COLLAGE MARDAN KPK (PAKISTAN)
The presentation is all about the environment around us and its ecology which consists of acid rain as a major problem of the environment.
Discussing its causes, effects & solutions.
more chemistry contents are available
1. pdf file on Termmate: https://www.termmate.com/rabia.aziz
2. YouTube: https://www.youtube.com/channel/UCKxWnNdskGHnZFS0h1QRTEA
3. Facebook: https://web.facebook.com/Chemist.Rabia.Aziz/
4. Blogger: https://chemistry-academy.blogspot.com/
Atmospheric particulate matter, Sources Of Particulate Matter
Industrial Sources of Particulate Emissions
Types Of Particulate Matter
Important Terms Describing Atmospheric Particles
Particulate Matter And Health
General Methods For Control Of Particulate Emissions
Particulate Collection Mechanism
: Air pollution is the presence of substances in ambient atmosphere, generally resulting from the activity of man in sufficient concentration, present for sufficient time and cause harmful effect on humans, plants and animals.
This is the fourth slideshow in a series for Unit 4 VCE Environmental Science. It discusses the factors contributing to air pollution, the sources and sinks and the human and environmental health effects.
more chemistry contents are available
1. pdf file on Termmate: https://www.termmate.com/rabia.aziz
2. YouTube: https://www.youtube.com/channel/UCKxWnNdskGHnZFS0h1QRTEA
3. Facebook: https://web.facebook.com/Chemist.Rabia.Aziz/
4. Blogger: https://chemistry-academy.blogspot.com/
Atmospheric particulate matter, Sources Of Particulate Matter
Industrial Sources of Particulate Emissions
Types Of Particulate Matter
Important Terms Describing Atmospheric Particles
Particulate Matter And Health
General Methods For Control Of Particulate Emissions
Particulate Collection Mechanism
: Air pollution is the presence of substances in ambient atmosphere, generally resulting from the activity of man in sufficient concentration, present for sufficient time and cause harmful effect on humans, plants and animals.
This is the fourth slideshow in a series for Unit 4 VCE Environmental Science. It discusses the factors contributing to air pollution, the sources and sinks and the human and environmental health effects.
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.
Acid rain or acid deposition is any kind of precipitation with unusually high acidic components such as sulfuric or nitric acid that fall in the ground from the atmosphere in wet or dry forms.This can include rain, snow, fog, hail or even dust that is acidic.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
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
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
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!
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.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
2. What is an Acid rain?
Acid rain is a rain or any other form of precipitation
that is unusually acidic, meaning that it possesses
elevated levels of hydrogen ions (low pH).
Refers to a mixture of deposited material, both wet
and dry, coming from the atmosphere containing
more than normal amounts of nitric and sulfuric
acids. Simply put, it means rain that is acidic in
nature due to the presence of certain pollutant in the
air due to cars and industrial processes .
3.
4.
5. Acidity is determined on the basis of the
pH level of the water droplets. Normal rain
water is slightly acidic with a pH range of
5.3-6.0, because carbon dioxide and water
present in the air react together to form
carbonic acid, which is a weak acid. When
the pH level of rain water falls below this
range, it becomes acid rain.
7. How acid rain is formed?
It occurs due to natural and human
activities. Erupting volcanoes contains
some chemicals that can cause acid rain.
Apart from this, burning of fossil fuels,
running of factories and automobiles due
to human activities are few other reasons
behind this activity.
8.
9. Formed in Acid rain
Sulfuric acid is a highly corrosive strong mineral acid with
the molecular formula H2SO4.
Nitric Acid – acid that contains nitrogen and that is used in
making fertilizers.
Causes Acid rain
Sulfur dioxide (also sulphur dioxide) is the chemical
compound with the formula SO2.
it is a toxic gas with a pungent, irritating, and rotten smell.
Nitrogen oxide In areas of high motor vehicle traffic, such
as in large cities, the amount of nitrogen oxides emitted
into the atmosphere as air pollution can be significant.
gases react to form smog and acid rain
10. Human Activity
Sulphur and nitrogen compounds
from human sources such as:
a) Electricity generations
b) Motor vehicles
c) Air pollution
d) Factories
11.
12.
13. Human Attribution
• Human emissions of sulfur dioxide and nitrogen
oxides contribute to the acidification of rain
• Emissions began during the industrial
revolution, remaining unchecked until the 1970s
• Biggest contributor is the burning of coal
• Annually 70Tg (1012 g) of Sulfur emissions comes
from fossil fuel burning, compared to 8Tg from
volcanoes and 2.8Tg from wildfires
14. Burning of coals in power plants.
Oil and natural gas in power stations
makes electricity, giving off sulphur
dioxide.
Burning petrol and oil in vehicle engines
give off nitrogen oxides as gases.
15. The Coal Power Plant Problem
Burning coal is extremely cheap and efficient
but dirty, releasing sulfur dioxide which
becomes sulfuric acid in the atmosphere
Areas downwind of power plants receive heavy
acid rain
Smoke stacks built to counteract direct
deposition of sulfuric acid only spread the
problem
16.
17.
18.
19. Natural Activities
Natural acid rain can be caused by volcanic
emissions and biological processes
Eruption of Volcanoes
Lightning
24. Effects on Human
Contribute heart and lung problem
including Asthma and Bronchitis.
25.
26.
27. On Nature
It can have harmful effects on plants, aquatic
animals and infrastructure.
Not many things can grow in acidic conditions
Low pH and high aluminum concentrations can
damage or kill fish and aquatic populations
Soils can be damaged by the hydronium ion, which
mobilizes aluminum and encourages leaching of
minerals such as magnesium essential for plant life
Forests suffer from soil damage, however most food
crops are unharmed because the nutrients lost are
replaced in fertilizer
28.
29.
30.
31.
32.
33.
34. Effects on Infrastructure
Effect on Architecture and Buildings – Acid rain on
buildings, especially those constructed with
limestone, react with the minerals and corrode them
away. This leaves the building weak and susceptible
to decay. Modern buildings, cars, airplanes, steel
bridges and pipes are all affected by acid rain.
Irreplaceable damage can be caused to the old
heritage buildings.
35. Other Effects
• Monuments made of
Calcium Carbonate
(limestone and marble)
will react with acid rain
to form Gypsum
• Increases the oxidation
rate of metals such as
copper and bronze
40. Acid rain can occur in form of rain, snow, fog or dry
material that settle to earth.
41. Wet Deposition
When the wind blows the acidic chemicals in the air
to the areas where the weather is wet, the acids fall
to the ground in the form of rain, sleet, fog, snow or
mist. It removes acid from the atmosphere and
deposit them on the earth’s surface. When this acid
flows through the ground, it affects large number of
plants, animals and aquatic life. The water from drain
flows into rivers and canals which is them mixed up
with sea water, thereby affecting marine habitats.
42.
43.
44. Dry Deposition
If the wind blows the acidic chemicals in the air to
the areas where the weather is dry, the acidic
pollutants slip into dust or smoke and fall to the
ground as dry particles. These stick to the ground
and other surfaces such as cars, houses, trees and
buildings. Almost 50% of the acidic pollutants in the
atmosphere fall back through dry deposition. These
acidic pollutants can be washed away from earth
surface by rainstorms.
45.
46.
47. Areas of Highest Concern
Current problem areas are:
Eastern United States
South Western Canada
Eastern Europe
East Coast of China
Potential future problem areas:
Southern India
West Africa
Indonesia
Thailand
48. Prevention
• Coal burning power plants use Flue gas
desulfurization requiring a reaction tower that
extracts the sulfuric acid by reacting it with lime or
limestone slurry and removing the product with
scrubbers
• Reduction in automotive emissions cuts down on
nitrogen oxides
• Emissions trading put into practice to put economic
incentive into cleaning industrial activities