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5 lessons,
50m 23s
Pollutant Transport Mechanism
195 plays

Pollutant transport Mechanism ,Sewage pollution , Bacterial and viral contamination

Aishwarya Mishra
A Double post graduate in Zoology(MSc) (2017) as well as in Education (MA)(2017) with State Govt. B.ed(2015), Qualified IBPS RRB PO & OPSC

Unacademy user
Q.35, Mirror image of C option is also correct. How come that is the answer
Deepanshu Rawat
a year ago
ya i also have the same qustion,,
a year ago
exactly i guess ans should be b
Viraj rai
8 months ago
yes answer is B
thank you ashwarya
Aishwarya Mishra
2 years ago
welcome ....
  1. Water Pollutiorn AISHWARYA MISHRA M.SC. IN ZOOLOGY (2017) MA IN EDUCATION (2017) B.Ed (2015)

  2. Pollutant Transport Mechanisms NPS pollutants build up on land surfaces during dry weather > Atmospheric deposition Fertilizer applications Animal waste Automotive exhaust/fluid leaks Pollutants are washed off land surfaces during precipitation events (stormwater runoff) . Stormwater runoff will flow to lakes and streams

  3. Pollutant build-up and wash off are affected by land use. Imperviousness increases runoff Land use changes impact build up

  4. Linking Land Use to Water Quality i/ More Imperviousness = More Water

  5. What is impervious cover? roads, rooftops, parking lots, and other hard surfaces that do not allow stormwater to soak into the ground "predominant American vegetation,

  6. Impervious Cover provides a surface for accumulation of pollutants leads to increased polluted runoff and flooding .inhibits recharge of groundwater

  7. Impact of Nonpoint Source Pollution fish and wildlife recreational water activities commercial fishing tourism drinking water quality

  8. Pollutants Found in Runoff Sediment Soil particles transported fromLeaves their source Biochemical Oxygen Demand (BOD) . Oxygen depleting material Organic material Toxics Nutrients . Various types of materials that become dissolved and suspended in water (commonly found in fertilizer and plant material) . Pesticides > Herbicides Fungicides Insecticides - Metals (naturally occurring in soil, automotive emissions/ tires) Nitrogen (N) Phosphorus (P) Lead Zinc Bacterial Pathogens Originating from: Thermal Stress Mercury Petroleum Hydrocarbons (automotive exhaust and fuel/oil) e Pets e Waterfowl . Failing septic systems vegetation Heated runoff removal of streamside Debris Litter and illegal dumping

  9. Potential Sources of Pollutants Found in Reside ntial Areas Nutrients: Fertilizers and septic systems Pathogens: Pet waste and septic systems Sediment : Construction, road sand, soil erosiorn Toxic : Pesticides, household products Debris: Litter and illegal dumping Thermal: heated runoff, removal of streamside veqetation BUY

  10. Pollutants from Agriculture Sediment Nutrients Pathogens Pesticides