Concentration of nitrogen dioxide (NO2) to the 99th percentile
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The concentration of NO2 at the 99th percentile, for each monitoring station with population representativity for gases (EMRPG). The concentration values (ppbv or µg/m3N), consisting of a calendar year of measurement, will be noted in a list arranged in increasing order that enables the accumulated concentration at 99% to be identified. The primary air quality standard for the annual concentration of nitrogen dioxide shall be considered excessive when the arithmetic mean of the annual concentration values of three successive calendar years at any EMRPG monitoring station is greater than or equal to 53 ppbv. The concentration of one hour shall also be considered excessive when the arithmetic mean of three successive years of the 99th percentile of the daily maximum concentrations of one hour recorded during a calendar year at any EMRPG monitoring station is greater than or equal to 213 ppbv.

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Subdepartment of Environment and Business Statistics - National Statistics Institute

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Ministry of the Environment (MMA)

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Air-Quality Monitoring Station

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Annual

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Administrative record

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Subdepartment of Environment and Business Statistics - National Statistics Institute

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Annual

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Parts per billion (ppb)

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Concentration of nitrogen dioxide (NO2) to the 99th percentileAbstract

The concentration of NO2 at the 99th percentile, for each monitoring station with population representativity for gases (EMRPG). The concentration values (ppbv or µg/m3N), consisting of a calendar year of measurement, will be noted in a list arranged in increasing order that enables the accumulated concentration at 99% to be identified. The primary air quality standard for the annual concentration of nitrogen dioxide shall be considered excessive when the arithmetic mean of the annual concentration values of three successive calendar years at any EMRPG monitoring station is greater than or equal to 53 ppbv. The concentration of one hour shall also be considered excessive when the arithmetic mean of three successive years of the 99th percentile of the daily maximum concentrations of one hour recorded during a calendar year at any EMRPG monitoring station is greater than or equal to 213 ppbv.

Contact person/organisation

Subdepartment of Environment and Business Statistics - National Statistics Institute

Melissa Hernándezmailto: mchernandezz@ine.gob.clData source(s) used

Administrative record

Name of collection/source

Ministry of the Environment (MMA)

Direct source

Air-Quality Monitoring Station

Source Periodicity

Annual

Source metadata

Metadata E10000059https://www.ine.cl/docs/default-source/variables-basicas-ambientales/metadatos/fichas/aire-estado/e10000059.pdf?sfvrsn=c1c60651_3?len=enDate last input received

-

Unit of measure used

Parts per billion (ppb)

Power code

-

Variables collected

-

Sampling

-

Periodicity

Annual

Reference period

-

Base period

-

Date last updated

-

Link to Release calendar

-

Contact person

Subdepartment of Environment and Business Statistics - National Statistics Institute

Melissa Hernándezmailto: mchernandezz@ine.gob.clStatistical population

-

Geographic coverage

-

Sector coverage

-

Institutional coverage

-

Item coverage

-

Population coverage

-

Product coverage

-

Other coverage

-

Key statistical concept

-

Classification(s) used

-

Aggregation & consolidation

-

Estimation

-

Imputation

-

Transformations

-

Validation

-

Index type

-

Weights

-

Seasonal adjustment

-

Other manipulations

-

Dissemination format(s)

-

Recommended uses and limitations

-

Quality comments

-

Other comments

-