For students from Agriculture field.Its about the effect of rising pollution on our agriculture.

1. Presenter: Ms. VaishaliSharma
B.ScAgriculture 2nd yr
RGSC,BHU,mirzapur

2. What is pollution?
 When harmful substances contaminate the
environment it is called pollution .
 Pollution refers to the very bad condition of
environment in terms of quantity and quality

3. Sources of pollution
OTHERS
POLLUTION
AGRICULTURENATURAL
DOMESTIC &
MUNICIPAL
INDUSTRY
BIOMEDICAL
MININGTRANSPORT

5. EFFECTS OF AIR POLLUTION
METALLIC PARTICULATE
POLLUTANTS
METABOLIC ACTIVITIES
IN PLANTS
SO2 STOP PLANTS GROWTH,
BLEACHING OF
CHLOROPHYLL, LEAF
NECROSIS(BROWN &
BLACK SPOT ON LEAF)

6. EFFECTS OF AIR POLLUTION
ON PLANTS
NOx CHLOROSIS
FLUORIDE DAMAGES OF FRUIT
O3 REDUCE GROWTH RATE ,
DAMAGE OF PLANT LIFE,
DEATH OF WHITE PINE
TREE.
PAN DAMAGE OF
CHLOROPLAST

16. Why we are concerned?
 Plant Health Issues
 Injury to foliage may be visible in a short time and
appear as necrotic lesions (dead tissue), or it can
develop slowly as a yellowing or chlorosis of the leaf.
 There may be a reduction in growth of various
portions of a plant. Plants may be killed outright, but
they usually do not succumb until they have suffered
recurrent injury.

26. Conclusion
 Air pollution negatively affects the yield and quality of
crops
 Sensitivity of crops differs among species and cultivars
 Meteorological conditions during crop growing season
affect the degree of negative effects on growth and yield of
crops
 Ozone poses the greatest threat to agriculture
 Plants also differ in their response to different air pollutant
combinations


28. Recommendations
 Expand air pollutant monitoring networks into
agricultural and forested areas
 Need to establish yield response relationships
applicable to different environmental conditions
 Develop bioindicator protocols for impact evaluation
 Explore high and low risk zones of air pollution impact
in different regions
 Establish realistic air quality guidelines for protecting
vegetation including crops

29. Thanks…..