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EENVI101 - Environmental Engineering > LE2 > Flashcards

Flashcards in LE2 Deck (29)
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1
Q

Precipitation abnormally high in sulfuric and nitric acid content that is caused by atmospheric pollutants.

A

Acid Precipitation

2
Q

A rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). It can have harmful effects on plants, aquatic animals and infrastructure.

A

Acid rain

3
Q

It is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.

A

Acid rain

4
Q

It is a generic name for Air Pollution Control Equipment (APC) that is designed around the use of engineered fabric filter tubes, envelopes or cartridges in the dust capturing, separation or filtering process.

A

Baghouse

5
Q

These are tiny air sacs within the lungs where the exchange of oxygen and carbon dioxide takes place.

A

Alveoli

6
Q

It is a naturally occurring chemical compound composed of two oxygen atoms each covalently double bonded to a single carbon atom

A

Carbon Dioxide

7
Q

It is historically defined as “the total sets of greenhouse gas emissions caused by an organization, event, product or person”

A

Carbon footprint

8
Q

It is a form of emissions trading that specifically targets carbon dioxide (calculated in tonnes of carbon dioxide equivalent or tCO2e) and it currently constitutes the bulk of emissions trading.

A

Carbon trading

9
Q

These are trails left in the sky by high-flying aircrafts that are believed to have contained chemicals or biological input

A

Chemtrails

10
Q

It is a change in the statistical distribution of weather patterns when that change lasts for an extended period of time

A

Climate change

11
Q

It is an area of closed, circular fluid motion rotating in the same direction as the Earth.

A

Cyclones

12
Q

It is a filtration device that removes fine particles, like dust and smoke, from a flowing gas using the force of an induced electrostatic charge minimally impeding the flow of gases through the unit.

A

Electrostatic precipitation

13
Q

These are made up of fallen snow that, over many years, compresses into large, thickened ice masses. It form when snow remains in one location long enough to transform into ice.

A

Glaciers

14
Q

It is a natural process that warms the Earth’s surface. When the Sun’s energy reaches the Earth’s atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases.

A

Greenhouse effect

15
Q

It is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.

A

Greenhouse gas

16
Q

Give some examples of greenhouse gasses

A
Water vapor
Carbon dioxide
Methane
Nitrous Oxide
Ozone
CFCs
17
Q

It provides a very high level of filtration efficiency for the smallest as well as the largest particulate contaminants.

A

HEPA Filters

18
Q

HEPA in HEPA Filter stands for __________

A

High Efficiency Particulate Air

19
Q

It is an organic compound consisting entirely of hydrogen and carbon. It can also be found naturally in crude oil

A

Hydrocarbon

20
Q

These are produced synthetically and are used primarily as refrigerants

A

Hydrofluorocarbon

21
Q

It is a colorless gas with the characteristic foul odor of rotten eggs; it is heavier than air, very poisonous, corrosive, flammable, and explosive.

A

Hydrogen Sulfide

22
Q

It is an international treaty, which extends the 1992 United Nations Framework Convention on Climate Change (UNFCCC) that commits State Parties to reduce greenhouse gases emissions, based on the premise that (a) global warming exists and (b) man-made CO2 emissions have caused it.

A

Kyoto Protocol

23
Q

A colorless, odorless flammable gas that is the main constituent of natural gas. It is the simplest member of the alkane series of hydrocarbons.

A

Methane

24
Q

A cloud of tiny water droplets suspended in the atmosphere at or near the earth’s surface limiting visibility, but to a lesser extent than fog; strictly, with visibility remaining above 1.5 miles (1 km).

A

Mist

25
Q

It is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion.

A

Montreal Protocol

26
Q

It is an instrument for measuring concentration of suspended particulates in a liquid or gas colloid. It measures suspended particulates by employing a light beam (source beam) and a light detector set to one side (often 90°) of the source beam.

A

Nephelometer

27
Q

These are produced from the reaction of nitrogen and oxygen gases in the air during combustion, especially at high temperatures

A

Nitrogen Oxide

28
Q

It is simply defined as reduction of unwanted ambient sound or noise

A

Noise cancellation

29
Q

It is a colorless unstable toxic gas with a pungent odor and powerful oxidizing properties, formed from oxygen by electrical discharges or ultraviolet light. It differs from normal oxygen (O2) in having three atoms in its molecule (O3).

A

Ozone