This document defines air pollution and discusses its sources and effects. It describes how people are exposed to air pollutants through breathing, eating, drinking, and touching contaminated items. Indoor and outdoor sources of air pollution are outlined. Common outdoor pollutants like particulate matter and gases from vehicle emissions and industry are mentioned. The global impact of air pollution and some highly polluted cities are briefly noted. References for further information are provided at the end.

1. Guided by
Dr. A.D.Kulkarni
HOD of PQA
Prepared by
Mr. Vinayak R. Bodhankar
F.Y.M.PHARM (PQA)
Roll No. : 01
Sanjivani College of Pharmaceutical Education & Research,
Kopargaon

2.  Introduction
 Sources of air pollution
 Exposure to Air pollutant
 Types air pollution
 Air pollution in the World
 References

3.  Air pollution can be defined as the presence of
toxic chemicals or compounds in the air, at certain
level that pose a health risk.
 In an even broader sense, air pollution means the
presence of chemicals or compounds in the air
which lowers the quality of air or cause
detrimental changes to quality of life.

5.  People are exposed to toxic air pollutant in many
ways, such as by :
 Breathing contaminated air
 Eating contaminated food products
 Drinking water contaminated by toxic air pollutant
 Touching contaminated soil, dust, water, etc.

6.  Indoor Pollution
 Outdoor Pollution

7.  It is the pollution that occurs inside our homes,
schools, office.
 The main sources of indoor pollution are tobacco
smoke, gases from stoves and furnace, household
chemicals, small fibre particles, hazardous fumes
given off by building material like insulation, glue
and paint, chemicals from cleaning products, wall
paint, air fresheners, etc.
 80% of the World population is affected by Indoor
pollution.

8.  Outdoor air is often referred to as ambient air.
 The common sources of outdoor pollution are
vehicle exhaust, emission from industries, smoke
from bushfires, etc.
 The most common air pollutant of ambient air
include :
 Particulate matter (PM10 and PM2.5)
 Ozone
 Nitrogen dioxide
 Carbon monoxide
 Sulphur dioxide

9.  Several pollutants are mixed in the air and a large
portion of the world population is regularly
exposed to harmful air.
 Various types are : SMOG
Particle pollution
Greenhouse effect
Natural air pollution

10.  SMOG is a mixture of two components i.e smoke
and fog.
 SMOG is formed as result of complex
photochemical reactions that involve nitrous
oxides and volatile organic compounds.
 SMOG causing pollutants are found in sources like
exhaust from vehicles, fumes from power plants
and solvents.

11.  It is a serious issue in the world.
 This kind of pollution is caused due to the exhaust
from burning diesel fuels in heavy transportation,
burning of fuels in power plants and burning of
woods.
• Greenhouse gases are responsible for the trapping of
heat in the earth atmosphere which result in the
warming of the planet.
• These gases are increased significantly because of
human activities such as exhaust from vehicles and
industries.

12.  According to the report of WHO, about 90% of world’s
population is exposed to dangerous level and 14 of
world’s 15 most polluted cities are in India.
 List of top polluted cities in the World

13.  PM stands for particulate matter (also called as
particle pollution)
 It is the term for a mixture of solid particles and
liquid droplets found in the air.
 Particle pollution include : PM10
PM2.5

14.  National Air Toxics Assessment
This site provide information on 33 air toxics that
present the greatest threat to public health in the
large number of urban areas.
 Toxics Release Inventory
This database includes information for the public
about release of toxic chemicals from
manufacturing facilities into the environment
through the air, water and land.

15.  https://www.epa.gov
 http://en.m.wikipedia.org
 http://medlineolus.gov