Question

What is Biochemical Oxygen Demand
What is the source of Carbon Monoxide in air? How does it affect the health of human beings?
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Answer 1

Answer:

1. WHAT IS BIOCHEMICAL OXYGEN DEMAND.

Ans :Biochemical oxygen demand (BOD) represents the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic (oxygen is present) conditions at a specified temperature. ... The decay of organic matter in water is measured as biochemical or chemical oxygen demand.

2.What is the source of Carbon Monoxide in air?

Ans:The greatest sources of CO to outdoor air are cars, trucks and other vehicles or machinery that burn fossil fuels. A variety of items in your home such as unvented kerosene and gas space heaters, leaking chimneys and furnaces, and gas stoves also release CO and can affect air quality indoors.

3 . How does it affect the health of human beings?

Ans : Carbon monoxide (CO) is an odorless, colorless gas formed by the incomplete combustion of fuels. When people are exposed to CO gas, the CO molecules will displace the oxygen in their bodies and lead to poisoning.

I HOPE IT HELPS YOU!

Answer 2

1.Biochemical oxygen demand (BOD) represents the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic (oxygen is present) conditions at a specified temperature.

2.Sources of CO include:

unvented kerosene and gas space heaters.

leaking chimneys and furnaces.

back-drafting from furnaces, gas water heaters, wood stoves and fireplaces.

gas stoves.

generators and other gasoline powered equipment.

automobile exhaust from attached garages.

tobacco smoke.

3.Unborn babies are at the highest risk of carbon monoxide poisoning, because foetal haemoglobin mixes more readily with CO than adult haemoglobin; therefore, the baby's carbon monoxide levels become higher than the mother's. Babies and children whose organs are still maturing are at risk of permanent organ damage. Furthermore, young children and infants breathe faster than adults and have a higher metabolic rate, so they inhale up to twice as much air as adults, particularly when sleeping, heightening their exposure to carbon monoxide.