What is the difference between VOC and Nmvoc?

What is the difference between VOC and Nmvoc?

Essentially, NMVOCs are identical to volatile organic compounds (VOCs), but with methane excluded. NMVOCs is an umbrella term which encompasses all speciated and oxygenated biogenic, anthropogenic, and pyrogenic organic molecules present in the atmosphere, minus the contribution of methane.

What is NMVOC in chemistry?

Abbreviation for Non-methane volatile organic compounds. Organic chemical compounds, excluding methane, that under normal conditions can vaporise and enter the atmosphere. NMVOCs include such compounds as benzene, xylene, propane and butane. See also VOCs.

What is NMVOC emission?

NMVOCs are emitted to air as combustion products, as vapour arising from petrol and solvent use and from numerous other sources. NMVOCs are involved in the photochemical production of ozone and secondary organic aerosols in the atmosphere over a large spatial scale.

Are NMVOC greenhouse gases?

Also reported are four indirect greenhouse gases: Nitrogen oxides (NOx) Carbon monoxide (CO) Non-methane volatile organic compounds (NMVOC)

Is BTEX carcinogenic?

Health standards for BTEX Benzene is a known carcinogen (cancer causing). The ambient air quality objectives to protect human and environmental health are 3 ppb for benzene, 100 ppb for toluene and up to 200 ppb for xylene—based on the ambient concentrations of these chemicals being averaged over a yearly period.

Where can I find an example of a simile?

Examples of similes can be found just about anywhere from poems to song lyrics and even in everyday conversations. Similes and metaphors are often confused with one another.

What is the difference between a metaphor and a simile?

Similes and metaphors are often confused with one another. The main difference between a simile and metaphor is that a simile uses the words “like” or “as” to draw a comparison and a metaphor simply states the comparison without using “like” or “as”. An example of a simile is: She is as innocent as an angel.

Are there any similes in the company logos?

There are also some similes that you can find in ads and company logos such as: Vault: “Drinks like a soda. Kicks like an energy drink.” Almond Joy / Mounds: “Sometimes you feel like a nut, sometimes you don’t.” Honda: “The Honda’s ride is as smooth as a gazelle in the Sahara. Its comfort is like a hug from Nana.”

Which is the principal term in a simile?

The principal term conveys the literal entity to be described, and the secondary term is used figuratively to add meaning. For example, in the simile “the cat’s fur felt smooth as silk,” the principal term is “cat’s fur” and the secondary term is “silk.”