SPECIFICATIONS
Title of the
project : environmental
pollution checking device
Domain : Embedded Systems Design
Software : Assembler, Proload
Microcontroller : 89S52 CISC Micro Controller
Power Supply : +5V, 500mA Regulated Power Supply
Display : a) LCD, HD44780 16-character, 2-line (16X2)
b)
LED 5mm
Crystal : 11.0592MHz
Sensors : LDR based sensor
Applications : Homes, offices, shops etc
ABSTRACT
Air pollution is the
introduction of chemicals,
particulate matter, or biological
materials that cause harm or discomfort to humans or other living
organisms, or cause damage to the natural environment or built
environment, into the atmosphere. The atmosphere is a complex dynamic
natural gaseous system that is essential to support life on planet Earth. Stratospheric
ozone depletion
due to air pollution has long been recognized as a threat to human health as
well as to the Earth's ecosystems. Indoor air pollution and urban air quality are
listed as two of the world's worst pollution problems in the 2008 Blacksmith Institute World's Worst
Polluted Places report.
Water pollution is the
contamination of water
bodies (e.g. lakes,
rivers,
oceans
and groundwater).
Water pollution occurs when pollutants are discharged directly or indirectly into water
bodies without adequate treatment to remove harmful compounds. Water
pollution affects plants and organisms living in these bodies of
water. In almost all cases the effect is damaging not only to
individual species
and populations, but also to the natural biological
communities.
Water pollution is a major global problem which
requires ongoing evaluation and revision of water resource policy at all levels. It
has been suggested that it is the leading worldwide cause of deaths and
diseases, and that it accounts for the deaths of more than 14,000 people daily.
In addition to the acute problems of water pollution in developing countries, developed countries continue to struggle with
pollution problems as well.
BLOCK DIAGRAM
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