Environmental Health — Flashcards

Flashcard 91: _____ enzyme test results in  negative  after pasteurisation of milk

Answer: phosphatase

Extra: 

Flashcard 92: _____ air changes/hour are recommended in high risk areas for a room of 24m3

Answer: 12

Extra: 

Flashcard 93: Water should be boiled for _____ for household purification.

Answer: 5-10 minutes

Flashcard 94: _____ days is the optimum time for water storage

Answer: 10-14

Extra: 

Flashcard 95: Identify the instrument: _____ Uses: Measurement of relative humidity and air temperature

Answer: Wet and Dry Bulb Thermometer

Flashcard 96: AQI is _____ in severe air pollution

Answer: 401-500

Flashcard 97: 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 98: SO2 is an indicator for _____

Answer: industrial air pollution

Extra: 

Flashcard 99: UN world water day is on _____

Answer: 22nd march

Extra: 

Flashcard 100: horrocks apparatus contains _____ cups

Answer: 6

Extra: