Podcast
Questions and Answers
What is the main purpose of a septic tank?
What is the main purpose of a septic tank?
- To store and digest sewage solids anaerobically (correct)
- To discharge effluent from bathrooms and kitchens
- To provide leaching of wastewater into the soil
- To completely fill up with stones
How often should a water-tight cesspool be cleaned?
How often should a water-tight cesspool be cleaned?
- Every 2 years
- Every 6 months (correct)
- Every 1-5 years
- Every month
What happens when the sides of a cesspool get clogged?
What happens when the sides of a cesspool get clogged?
- The leaching capacity reduces (correct)
- The leaching capacity increases
- The bottom of the pit rises
- The pit becomes more porous
What type of soil is best suitable for cesspools?
What type of soil is best suitable for cesspools?
What is the difference between a seepage pit and a cesspool?
What is the difference between a seepage pit and a cesspool?
Why is it essential for the bottom of a cesspool to be well above the ground water level?
Why is it essential for the bottom of a cesspool to be well above the ground water level?
What is the unit of measurement commonly used to express concentrations of air pollutants?
What is the unit of measurement commonly used to express concentrations of air pollutants?
Which of the following substances is NOT considered an air pollutant in the text?
Which of the following substances is NOT considered an air pollutant in the text?
At what concentration level does a substance become considered an air pollutant in the text?
At what concentration level does a substance become considered an air pollutant in the text?
What is the relationship between parts per million (ppm) and milligrams per cubic meter (mg/m3) based on the text?
What is the relationship between parts per million (ppm) and milligrams per cubic meter (mg/m3) based on the text?
What factor affects the relationship between parts per million (ppm) and milligrams per cubic meter (mg/m3)?
What factor affects the relationship between parts per million (ppm) and milligrams per cubic meter (mg/m3)?
How is air pollution defined in the text?
How is air pollution defined in the text?
What is the volume occupied by 1 mole of an ideal gas at standard conditions according to the text?
What is the volume occupied by 1 mole of an ideal gas at standard conditions according to the text?
Why might some rapidly developing societies not invest in air pollution control according to the text?
Why might some rapidly developing societies not invest in air pollution control according to the text?
What is the primary source of sulfur dioxide (SO2)?
What is the primary source of sulfur dioxide (SO2)?
Which gas plays a role in the formation of tropospheric ozone?
Which gas plays a role in the formation of tropospheric ozone?
What is the main source of carbon monoxide (CO) in the atmosphere?
What is the main source of carbon monoxide (CO) in the atmosphere?
What can lead to reduced visibility and respiratory diseases?
What can lead to reduced visibility and respiratory diseases?
Which pollutant is a secondary pollutant formed through photochemical reactions involving NOX and VOCs?
Which pollutant is a secondary pollutant formed through photochemical reactions involving NOX and VOCs?
What is one of the main contributors to indoor pollution?
What is one of the main contributors to indoor pollution?
Where do geogenic sources of indoor air pollution originate from?
Where do geogenic sources of indoor air pollution originate from?
Which pollutant is colorless but has a suffocating, pungent odor?
Which pollutant is colorless but has a suffocating, pungent odor?
What can exposure to lead (Pb) affect in the human body?
What can exposure to lead (Pb) affect in the human body?
What constitutes Hazardous Air Pollutants (HAPS)?
What constitutes Hazardous Air Pollutants (HAPS)?
What are the major health effects caused by community air pollution according to the text?
What are the major health effects caused by community air pollution according to the text?
What is a characteristic mucosal irritation caused by high levels of air pollution?
What is a characteristic mucosal irritation caused by high levels of air pollution?
Which pollutants tend to occur together in association with traffic, especially in sunny regions?
Which pollutants tend to occur together in association with traffic, especially in sunny regions?
What is a source of Total Suspended Particulate Matter (TSP) as per the text?
What is a source of Total Suspended Particulate Matter (TSP) as per the text?
Which of the following is NOT a criterion pollutant regulated by US-EPA and most countries?
Which of the following is NOT a criterion pollutant regulated by US-EPA and most countries?
What is the main cause of respiratory symptoms as mentioned in the text?
What is the main cause of respiratory symptoms as mentioned in the text?
Which health effect may result from accumulated lead exposure due to air pollution?
Which health effect may result from accumulated lead exposure due to air pollution?
What is a significant cause of cancer associated with community air pollution mentioned in the text?
What is a significant cause of cancer associated with community air pollution mentioned in the text?
What can be said about the relationship between air pollution and cancer according to the text?
What can be said about the relationship between air pollution and cancer according to the text?
What population shows better characterization of health effects from air pollution according to the text?
What population shows better characterization of health effects from air pollution according to the text?
What are primary air pollutants?
What are primary air pollutants?
Which pollutant was a serious problem in air pollution during industrialization?
Which pollutant was a serious problem in air pollution during industrialization?
What is the main effect of sulfur dioxide on the respiratory system?
What is the main effect of sulfur dioxide on the respiratory system?
Who is particularly susceptible to the effects of sulfur dioxide?
Who is particularly susceptible to the effects of sulfur dioxide?
What is a major constituent of air pollution capable of forming acid?
What is a major constituent of air pollution capable of forming acid?
Which pollutant is created by the oxidation of Nitric Oxide?
Which pollutant is created by the oxidation of Nitric Oxide?
What are the guideline levels for exposure to Nitrogen Dioxide according to WHO?
What are the guideline levels for exposure to Nitrogen Dioxide according to WHO?
What are the direct effects of nitrogen oxide on the respiratory system?
What are the direct effects of nitrogen oxide on the respiratory system?
$SO2$ and sulfates are principal chemical species that cause what phenomenon?
$SO2$ and sulfates are principal chemical species that cause what phenomenon?
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