Environmental Health — Flashcards

Flashcard 101: Identify the instrument: _____ Uses: Measurement of relative humidity and air temperature

Answer: Wet and Dry Bulb Thermometer

Flashcard 102: In the **Bangalore method** of composting, formation of humus takes _____

Answer: 4-6 months

Flashcard 103: UN world water day is on _____

Answer: 22nd march

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Flashcard 104: Airborne particle (droplet nuclei) size is _____

Answer: < 5 microns

Extra: Droplet nuclei (airborne transmission) are typically < 5 microns in size and can remain suspended in the air for long periods. Particles > 5 microns are considered droplets (droplet transmission). In environmental health, PM10 refers to particles < 10 microns which are inhalable.

Flashcard 105: examples of larvivorus fishes

Answer: Gambusia Poecilia (Guppy)

Extra: Gambusia affinis and Poecilia reticulata are the most commonly used larvivorous fish for biological control of mosquito larvae.

Flashcard 106: McArdle index depends on _____

Answer: CET (Corrected Effective Temperature)

Flashcard 107: 3323f70f79e14b3cbe3e2902781bf872-ao-3

Answer: sand filters

Extra: 

Flashcard 108: organic waste is called _____

Answer: garbage

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Flashcard 109: _____ is the sum of grit index and soiling index

Answer: Air pollution index

Extra: The Air Pollution Index is sometimes calculated as the sum of the grit index (larger particles) and the soiling index (smaller smoke particles). Coefficient of Haze (COH) is actually a unit/measure used for the soiling index itself.

Flashcard 110: _____ index measures particulate matter in air

Answer: Soiling

Extra: The Soiling Index (also known as the Coefficient of Haze) is an indicator used to measure the density of suspended particulate matter (specifically smoke) in the air. Grit and dust are typically measured using a deposit gauge and expressed by weight, rather than an index.