primary pollutant
primary pollutant
[′prī‚mer·ē pə′lüt·ənt] (meteorology)
A pollutant that enters the air directly from a source.
Mentioned in
?
References in periodicals archive
?
Secondary pollutants such as [O.sub.3] and S[O.sub.4] had higher concentrations in the warm than in the cold season, whereas primary pollutant such as CO had higher concentrations in the cold than in the warm season.
Nitrogen dioxide is a primary pollutant and strong respiratory irritant, with the main outdoor sources including motor vehicles and fossil-fuel power plants, whereas the most important indoor sources are gas heaters, stoves and tobacco smoke (31,32).
In [11], the dispersion of primary pollutant was studied in a two-dimensional air pollution model with mesoscale wind.
The primary pollutant in both cities is particulate matter, largely the result of fossil fuel combustion.
As part of its pro-Green policies, Norway's leftwing Liberal Party demanded the tax be incorporated into the 2016 budget as a means of dampening demand for air travel which is seen a primary pollutant. The tax is expected to raise NOK2 billion (USD226.8 million) for the fiscus on an annualized basis.
[PM.sub.2.5] as the Most Important Primary Pollutant. According to the Technical Regulation on Ambient Air Quality Index (on trial), except when the air quality as a whole is Grade I, the criterion pollutant with the highest individual air quality index shall be listed as the primary pollutant on the air quality report.
The law closes a major loophole in existing laws which would otherwise allow increased and unlimited emissions of carbon dioxide--the primary pollutant that causes global warming--from coal gasification plants.
The primary pollutant groups are "nutrients" (compounds of nitrogen and phosphorus that come from sewage and fertilizer), and chemical pollution (insecticides, heavy metals and other toxic chemicals in stormwater, wastewater and engine discharges).
According to the Environmental Protection Agency, a primary pollutant is an air pollutant that is emitted directly from a source, either a stationary source or a primary source [3].
The different duration of the atmospheric mixing phase over a year has an important consequence for atmospheric primary pollutant's concentration.
Intersite correlations (median r [less than or equal to] 0.08) were low for the primary pollutant S[O.sub.2] and other metals (Cu, Zn, Pb) largely originating from local industrial point sources (Table 1).
One network was identified for genes affected by the primary pollutant mixture, which included proteins relevant to cancer biology.
Encyclopedia browser
?
- ▲
- primary lateral sclerosis
- primary lead
- primary lesion
- primary light source
- primary lights
- primary low
- primary magma
- primary management domain
- primary measuring element
- primary member
- primary meristem
- Primary Metal
- primary mineral
- primary mirror
- primary navigation display
- primary optic axis
- primary orogeny
- primary parallax
- primary partition
- Primary Party Organization
- primary phase
- primary phase region
- primary phloem
- primary photocurrent
- primary plasticizer
- primary pollutant
- primary porosity
- primary power cable
- Primary Process
- primary producer
- Primary Production
- primary radar
- primary radiation
- primary rainbow
- Primary Rate Interface
- primary reference fuel
- primary refrigerant
- primary register
- primary relay
- primary reserve
- primary rocks
- primary root
- primary runway
- primary scattering
- primary school
- primary sector
- primary sedimentary structure
- primary service area
- primary sewage sludge
- Primary Sex Characters
- primary skip zone
- ▼
Full browser
?
- ▲
- primary phloem
- primary photocurrent
- primary photosensitization
- primary photosensitization
- primary phototoxicity
- primary phototoxicity
- Primary Physician Group
- primary pigmentary degeneration of retina
- Primary Pigmented Nodular Adrenocortical Disease
- Primary Pigmented Nodular Adrenocortical Disease
- Primary pigments
- Primary pigments
- Primary pigments
- Primary pinna
- Primary Place of Business
- Primary Place of Usage
- primary planet
- Primary planets
- Primary Plant Control
- Primary Plant Instrumentation
- Primary Plasma Condenser
- primary plasticizer
- Primary Plate Analyzer
- Primary Plugging Temperature Indicator
- Primary Point
- Primary Point Code
- Primary Point of Contact
- Primary Point of Escalation
- primary point of ossification
- Primary Policy Database
- primary pollutant
- primary polycythemia
- primary polycythemia
- primary polycythemia
- primary polydipsia
- primary polydipsia
- primary polydipsia
- primary porosity
- Primary Position Upbeat Nystagmus
- Primary Posterior Continuous Curvilinear Capsulorhexis
- Primary Postoperative Peptic Esophageal Stricture
- primary power cable
- Primary Power Distribution
- Primary Power Distribution System
- Primary Power Interface
- Primary Power Source/Supply
- Primary Power System
- Primary powers
- Primary Practice Opportunities of Virginia
- Primary Pressure
- Primary prevention
- Primary prevention
- Primary prevention
- Primary prevention
- Primary Prevention Project
- primary preventive nursing
- primary process
- primary process
- primary process
- Primary Process Group
- primary process thinking
- ▼