Indoor Air Pollution Monitoring

1. Indoor Air Pollution
and It’s Monitoring
System
Presented By: Amit Divekar
Roll No: 523001
M.E.(Mechatronics)
Guided By: Prof. K.V. Mali

2. Overview of Indoor Air Pollution
 Indoor Air Pollution(IAP): It refers to physical chemical &
biological characteristics of air inside indoor environment
(buildings) which harm ,discomfort human & living organisms.[4]
 Since most people spend more time indoors than outdoors,
exposure to indoor air pollutants is an important environmental
problem.
 Indoor air quality (IAQ) is a term which refers to the air quality
within and around buildings and structures, especially as it relates
to the health and comfort of building occupants.[7]
 Good indoor air quality(IAQ) has no unwanted gases or particles in
it at concentrations which will adversely affect someone
 Poor indoor air quality has gases or particles in excessive
concentration so as to affect the satisfaction or health of occupants

3. Causes Of Indoor Air Pollution [1,4]
Air tightness of buildings – Causes inadequate supply
of fresh air, as a result, negative pressure develops, which
causes ground level pollutants, e.g. CO, Radon etc. to be
drawn inside the buildings.
Poorly designed air conditioning and ventilation
systems:- Results into the production of fungi, molds and
other sickness causing microbes.
Outdoor sources of pollution:- Industrial gases,
Vehicles, Dust Etc.
Indoor sources of pollution
To Be cont……

4. Indoor sources of Pollution
1. Combustion of gases from Fireplaces ,
Solid fuel, coal & traditional stoves [2]
Sources of Indoor air pollution due to Combustion[1]
Traditional cooking [2]
The burning of wood, animal dung and other bio-fuels produces
toxic combustion gases like CO formaldehyde etc. These gases
pollute breathing air near the fire place. [4]
Concentration of toxic substances is at highest in the direct
vicinity of the firing zone o ovens. [4]
A major cause of acute respiratory infections (ARI), one of the
most important causes of childhood death in developing countries [1]
Globally, indoor air pollution is responsible for approximately 1.6
million deaths every year. [2]

5. Indoor sources of Pollution [1,4]
2. Dust Mites
3. Paints , Pesticides & chemicals Fumes
4. Cigarette smoking
5. Indoor workplace

6. Indoor air monitoring[2,5]
• Accurate measurements are needed to bring about effective
pollution control.
•From a health perspective, reducing exposure to indoor air
pollution (IAP) is and should be the primary objective of
household energy interventions. Measuring IAP levels is
particularly important given the difficulty in assessing health
outcomes directly. Thus reductions in pollution levels can be
assessed as a proxy for likely reductions in health outcomes.
Indoor air quality checking devices

7. BLOCK DIAGRAM [2,4]
Air Quality
Sensor
CO Sensor
A
To
D
Converter
Micro-
Controller
Display
Power
Supply
Temp
sensor
GPS
Buzzer

8. Monitoring benefits [4]
• Air quality monitoring helps us in better understanding the
sources, levels of different air pollutants, effects of air
pollution control policy, and exposure of various substances
in the air we breathe.
• Air quality monitoring program assists us in improving and
developing air pollution control programs to reduce the effect
of air pollution.
• The purpose of air monitoring is not merely to collect data, but also
to provide the information necessary for engineers, scientists,
policy makers, politicians and planners to make informed
decisions on managing and improving the air environment.

9. • High cost of equipment.
• Sampling from open stoves is more difficult, because there is no
defined standard.
Monitoring Limitations [4,5]

10. CONCLUSION
• Indoor Air pollution is more dangerous than outdoor air
pollution. Awareness particularly in developing countries as it
affect health of child. Strictly regulations are necessary.
• IAP monitoring helps to get know level of different air pollutants
& desired degree of control needs to be developed.

11. References:
1. POLLUTION CONTROL TECHNOLOGIES-VOL-II-Indoor Air Quality
Monitoring and Control-A. Buekens and K. Schroyens
2. WHO Library Cataloguing-in-Publication Data: Indoor air pollution and
household energy monitoring: workshop resources.
3. MONITORING INDOOR AIR POLLUTION By SUSMITA DASGUPTA ,MAINUL
HUQ, M. KHALIQUZZAMAN ,CRAIGMEISNER ,KIRAN PANDEY , DAVID
WHEELER : OCTOBER 2004.
4. Jürgen Usinger :Manual on Simple Monitoring Techniques for the Control of
Indoor Airand Combustion Quality Standards in Developing Countries:
Eschborn 1999 2nd revised edition
5. J.P.Holman: Experimental Methods for Engineers: Tata McGraw-Hill Publishing
Company Limited : 7th Edition
6. http://www.who.int/indoorair/publications/workshopresources/en/
7. http://en.wikipedia.org/wiki/Indoor_air_quality