Concentration of carbon monoxide (CO) to the 99th percentile
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The concentration of CO at the 99th percentile for each monitoring station with population representativity for gases (EMRPG). The concentration values (ppmv or mg/m3N) for a calendar year of measurement, will be arranged by increasing magnitude in a list in order to identify the accumulated concentration at 99%. The primary air quality standard for the eight-hour concentration of carbon monoxide shall be considered excessive when the arithmetic mean of three successive years of the 99th percentile of the daily maximum eight-hour concentration recorded during a calendar year in any EMRPG monitoring station is greater than or equal to 9 ppmv. The concentration of one hour shall 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 26 ppmv.

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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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Annual

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Parts per billion (ppbv)

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Concentration of carbon monoxide (CO) to the 99th percentileAbstract

The concentration of CO at the 99th percentile for each monitoring station with population representativity for gases (EMRPG). The concentration values (ppmv or mg/m3N) for a calendar year of measurement, will be arranged by increasing magnitude in a list in order to identify the accumulated concentration at 99%. The primary air quality standard for the eight-hour concentration of carbon monoxide shall be considered excessive when the arithmetic mean of three successive years of the 99th percentile of the daily maximum eight-hour concentration recorded during a calendar year in any EMRPG monitoring station is greater than or equal to 9 ppmv. The concentration of one hour shall 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 26 ppmv.

Contact person/organisation

Subdepartment of Environment Statistics - National Statistics Institute

Melissa Hernándezmailto: mchernandezz@ine.gob.cl
Data 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 E10000073https://www.ine.cl/docs/default-source/variables-basicas-ambientales/metadatos/fichas/aire-estado/e10000073.pdf?sfvrsn=da561fde_3?len=enDate last input received

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Unit of measure used

Parts per billion (ppbv)

Power code

-

Variables collected

-

Sampling

-

Periodicity

Annual

Reference period

-

Base period

-

Date last updated

-

Link to Release calendar

-

Contact person

Subdepartment of Environment Statistics - National Statistics Institute

Melissa Hernándezmailto: mchernandezz@ine.gob.cl
Statistical 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

-