phenomenon

Aspect of scientific interest with measurable quantities

    elec

Associated with electricity or with electrical force, power, or energy

        ac-elec

Alternating current electricity

        dc-elec

Direct current electricity

    light

Electromagnetic radiation in the visible spectrum

    solar

Relating to energy from the sun

    substance

Matter in one the three states solid, liquid, or gas

        biomass

Plant or animal material used as fuel to produce electricity or heat

        fluid

Liquid or gas

            gas

Substance with neither definite volume nor shape

                air

The mixture of gases which surrounds the earth

                ch2o

Formaldehyde (CH₂O)

                ch4

Methane (CH₄)

                co

Carbon monoxide (CO)

                co2

Carbon dioxide (CO₂)

                hfc

Hydrofluorocarbons

                n2o

Nitrous oxide (N₂O)

                naturalGas

Fossil fuel energy source consisting largely of methane and other hydrocarbons

                nf3

Nitrogen trifluoride (NF₃)

                nh3

Ammonia (NH₃)

                no2

Nitrogen dioxide (NO₂)

                o2

Oxygen (O₂) - the common dioxygen allotrope in the air

                o3

Ozone (O₃)

                pfc

Perfluorocarbons

                propane

By-product of natural gas processing and petroleum refining (C₃H₈)

                sf6

Sulphur hexafluoride (SF₆)

                steam

Water in its gas form

                tvoc

Total volatile organic compound (TVOC)

            liquid

Substance with definite volume but takes the shape of its container

                condensate

Liquid phase produced by the condensation of steam or other gas

                diesel

Liquid fuel specifically designed for use in diesel engines

                fuelOil

Petroleum based oil burned for energy

                gasoline

Petroleum derived liquid used as a fuel source

                water

Water in its liquid form

                    blowdown-water

Water expelled from a system to remove mineral build up

                    chilled-water

Water cooled for use in HVAC and industrial processes

                    cold-water

Water supplied to cold taps

                    condenser-water

Water used used to remove heat through condensation

                    cool-water

Relatively cool water without active chilling

                    domestic-water

Tap water for drinking, washing, cooking, and flushing of toilets

                    ground-water

Water present under the ground or from a well

                    hot-water

Hot water used for HVAC heating or supplied to hot taps

                    makeup-water

Water used used to makeup water loss through leaks, evaporation, or blowdown

                    purge-water

Water expelled from a system to remove contaminants

                    warm-water

Relatively warm water without active heating

            refrig

Fluid used in refrigeration and heat exchange

        solid

Substance with definite shape and volume

            coal

Combustible sedimentary rock

            ice

Water in its solid form

            pm01

Particulate matter 0.1

            pm10

Particulate matter 10

            pm25

Particulate matter 2.5

    weather

Associated with atmospheric air or phenomenon

    wind

Flow of air on surface of the Earth