TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
INDEX QUALITY AIR [10 records]
Record 1 - internal organization data 2026-02-11
Record 1, English
Record 1, Subject field(s)
- Air Pollution
- Meteorological Forecasting, Data Measurement and Analysis
- Collaboration with Health Canada
Record 1, Main entry term, English
- Special Air Quality Statement
1, record 1, English, Special%20Air%20Quality%20Statement
correct, noun
Record 1, Abbreviations, English
- SAQS 1, record 1, English, SAQS
correct, noun
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
An SAQS will be issued when the air quality health index(AQHI) is forecast to reach the high-risk category(AQHI of 7 to 10). 2, record 1, English, - Special%20Air%20Quality%20Statement
Record 1, French
Record 1, Domaine(s)
- Pollution de l'air
- Prévisions météorologiques et mesure et analyse des données
- Collaboration avec Santé Canada
Record 1, Main entry term, French
- bulletin spécial sur la qualité de l'air
1, record 1, French, bulletin%20sp%C3%A9cial%20sur%20la%20qualit%C3%A9%20de%20l%27air
correct, masculine noun
Record 1, Abbreviations, French
- BSQA 1, record 1, French, BSQA
correct, masculine noun
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Un BSQA sera émis lorsqu'on prévoit que la cote air santé (CAS) atteigne la catégorie de risque élevé (CAS de 7 à 10). 2, record 1, French, - bulletin%20sp%C3%A9cial%20sur%20la%20qualit%C3%A9%20de%20l%27air
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2026-02-11
Record 2, English
Record 2, Subject field(s)
- Air Pollution
- Meteorological Forecasting, Data Measurement and Analysis
- Collaboration with Health Canada
Record 2, Main entry term, English
- Air Quality Advisory
1, record 2, English, Air%20Quality%20Advisory
correct, noun
Record 2, Abbreviations, English
- AQA 1, record 2, English, AQA
correct, noun
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
AQA will be issued when the AQHI [air quality health index] is at 10 or more(very high risk) for 3 or more hours due to wildfire smoke. 2, record 2, English, - Air%20Quality%20Advisory
Record 2, French
Record 2, Domaine(s)
- Pollution de l'air
- Prévisions météorologiques et mesure et analyse des données
- Collaboration avec Santé Canada
Record 2, Main entry term, French
- avis sur la qualité de l'air
1, record 2, French, avis%20sur%20la%20qualit%C3%A9%20de%20l%27air
correct, masculine noun
Record 2, Abbreviations, French
- AQA 1, record 2, French, AQA
correct, masculine noun
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
L'AQA sera émis lorsque la CAS [cote air santé] est de 10 ou plus (risque très élevé) pendant 3 heures ou plus en raison de la fumée d'un feu de forêt. 2, record 2, French, - avis%20sur%20la%20qualit%C3%A9%20de%20l%27air
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2026-02-09
Record 3, English
Record 3, Subject field(s)
- Environmental Studies and Analyses
- Air Pollution
- Collaboration with Health Canada
Record 3, Main entry term, English
- air quality index
1, record 3, English, air%20quality%20index
correct, noun
Record 3, Abbreviations, English
- AQI 1, record 3, English, AQI
correct, noun
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
[An index that] provides information on the adverse effects of the more common air pollutants. 2, record 3, English, - air%20quality%20index
Record number: 3, Textual support number: 1 OBS
[The air quality index] is designed to identify the worst effects that may result from the mixture of pollutants currently being measured and to describe the prevailing air quality. 2, record 3, English, - air%20quality%20index
Record number: 3, Textual support number: 2 OBS
air quality index : designation used by Environment Canada. 3, record 3, English, - air%20quality%20index
Record 3, French
Record 3, Domaine(s)
- Études et analyses environnementales
- Pollution de l'air
- Collaboration avec Santé Canada
Record 3, Main entry term, French
- indice de la qualité de l'air
1, record 3, French, indice%20de%20la%20qualit%C3%A9%20de%20l%27air
correct, masculine noun
Record 3, Abbreviations, French
- IQA 1, record 3, French, IQA
correct, masculine noun
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
[Indice qui] fournit des renseignements sur les effets néfastes des polluants atmosphériques les plus courants. 2, record 3, French, - indice%20de%20la%20qualit%C3%A9%20de%20l%27air
Record number: 3, Textual support number: 1 OBS
[L'indice de la qualité de l'air] est conçu de façon à cerner les effets les plus nocifs que [peut] entraîner le mélange de polluants qui fait l'objet d'une mesure et à décrire la qualité de l'air ambiant. 2, record 3, French, - indice%20de%20la%20qualit%C3%A9%20de%20l%27air
Record number: 3, Textual support number: 2 OBS
indice de la qualité de l'air : désignation en usage à Environnement Canada. 3, record 3, French, - indice%20de%20la%20qualit%C3%A9%20de%20l%27air
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2026-02-06
Record 4, English
Record 4, Subject field(s)
- Environmental Studies and Analyses
- Air Pollution
- Collaboration with Health Canada
Record 4, Main entry term, English
- air quality health index
1, record 4, English, air%20quality%20health%20index
correct, noun
Record 4, Abbreviations, English
- AQHI 2, record 4, English, AQHI
correct, noun
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
The air quality health index or "AQHI" is a scale designed to help you understand what the air quality around you means to your health.... The AQHI communicates four primary things : 1. A number from 1 and 10+ indicating the quality of the air. The higher the number, the greater the health risk associated with the air quality. When the amount of air pollution is very high, the number will be reported as 10+. 2. A category that describes the level of health risk associated with the index reading(e. g. Low, Moderate, High, or Very High Health Risk). 3. Health messages customized to each category for both the general population and the ’at risk’ population. 4. Current hourly AQHI readings and maximum forecasted values for today, tonight and tomorrow. 3, record 4, English, - air%20quality%20health%20index
Record number: 4, Textual support number: 1 OBS
air quality health index : term used by Environment Canada. 4, record 4, English, - air%20quality%20health%20index
Record 4, French
Record 4, Domaine(s)
- Études et analyses environnementales
- Pollution de l'air
- Collaboration avec Santé Canada
Record 4, Main entry term, French
- cote air santé
1, record 4, French, cote%20air%20sant%C3%A9
correct, feminine noun
Record 4, Abbreviations, French
- CAS 2, record 4, French, CAS
correct, feminine noun
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
La cote air santé (CAS) est conçue pour vous aider à comprendre les effets de la qualité de l'air sur votre santé. [...] La CAS comporte quatre grands éléments : 1. Un nombre de 1 à 10+ indiquant la qualité de l'air. Plus le nombre est élevé, plus le risque présenté par la qualité de l'air est grand. Ainsi, la cote 10+ indique que la pollution de l'air présente un risque très élevé. 2. Une catégorie de risque pour la santé correspondant au nombre indiqué (risque faible, modéré, élevé ou très élevé). 3. Pour chaque catégorie, des messages relatifs à la santé destinés tant au grand public qu'aux personnes vulnérables. 4. La CAS horaire courante et les valeurs maximales prévues pour le jour même, la nuit suivante et le lendemain. 3, record 4, French, - cote%20air%20sant%C3%A9
Record number: 4, Textual support number: 1 OBS
cote air santé : terme en usage à Environnement Canada. 4, record 4, French, - cote%20air%20sant%C3%A9
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Estudios y análisis del medio ambiente
- Contaminación del aire
- Colaboración con el Ministerio de Salud de Canadá
Record 4, Main entry term, Spanish
- índice aire y salud
1, record 4, Spanish, %C3%ADndice%20aire%20y%20salud
correct, masculine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record number: 4, Textual support number: 1 DEF
Indicador para comunicar el grado de contaminación atmosférica y la probabilidad de que ocurra un efecto adverso en la salud de las personas si se exponen a los contaminantes. 1, record 4, Spanish, - %C3%ADndice%20aire%20y%20salud
Record 5 - internal organization data 2023-01-31
Record 5, English
Record 5, Subject field(s)
- Titles of Federal Government Programs (Canadian)
- Meteorological Forecasting, Data Measurement and Analysis
Record 5, Main entry term, English
- Hello Weather
1, record 5, English, Hello%20Weather
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 OBS
On November 15, 2021, the Hello Weather service was launched, and now automated weather information is delivered through 2 national toll-free lines. 1, record 5, English, - Hello%20Weather
Record number: 5, Textual support number: 2 OBS
This telephone service provides weather forecasts, current weather conditions, information on impending hazardous weather, marine weather information, and air quality and health index information. 1, record 5, English, - Hello%20Weather
Record 5, French
Record 5, Domaine(s)
- Titres de programmes fédéraux (Gouvernement canadien)
- Prévisions météorologiques et mesure et analyse des données
Record 5, Main entry term, French
- Bonjour Météo
1, record 5, French, Bonjour%20M%C3%A9t%C3%A9o
correct
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 OBS
Le lancement du service Bonjour Météo a eu lieu le 15 novembre 2021, et les renseignements météorologiques automatisés sont maintenant diffusés au moyen de 2 lignes nationales sans frais. 1, record 5, French, - Bonjour%20M%C3%A9t%C3%A9o
Record number: 5, Textual support number: 2 OBS
Ce service téléphonique fournit des prévisions météorologiques, des renseignements sur les conditions météorologiques courantes, les phénomènes météorologiques dangereux imminents, la météo maritime et la cote air santé. 1, record 5, French, - Bonjour%20M%C3%A9t%C3%A9o
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2009-11-10
Record 6, English
Record 6, Subject field(s)
- Various Proper Names
- Air Pollution
- Scientific Measurements and Analyses
Record 6, Main entry term, English
- Index of the Quality of the Air
1, record 6, English, Index%20of%20the%20Quality%20of%20the%20Air
correct
Record 6, Abbreviations, English
- IQUA 1, record 6, English, IQUA
correct
Record 6, Synonyms, English
- Air Quality Index 1, record 6, English, Air%20Quality%20Index
correct
- IQUA 1, record 6, English, IQUA
correct
- IQUA 1, record 6, English, IQUA
Record 6, Textual support, English
Record number: 6, Textual support number: 1 OBS
The Index of the Quality of the Air(IQUA) is a service provided by the New Brunswick Department of the Environment and is updated three times per day, seven days a week. IQUA measures the following compounds, sulphur dioxide, nitrogen dioxide, carbon monoxide, ozone, and hydrogen sulphide, based on data collected from stations in southern New Brunswick. 1, record 6, English, - Index%20of%20the%20Quality%20of%20the%20Air
Record 6, French
Record 6, Domaine(s)
- Appellations diverses
- Pollution de l'air
- Mesures et analyse (Sciences)
Record 6, Main entry term, French
- L'indice de la qualité de l'air
1, record 6, French, L%27indice%20de%20la%20qualit%C3%A9%20de%20l%27air
correct, masculine noun
Record 6, Abbreviations, French
- IQUA 1, record 6, French, IQUA
correct, masculine noun
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 OBS
L'indice de la qualité de l'air (IQUA) est un service offert par le ministère de l'Environnement. Des mises à jour sont effectuées trois fois par jour, sept jours par semaine. L'indice de la qualité de l'air mesure les composés suivants : anhydride sulfureux, le dioxyde d'azote, l'oxyde de carbone, l'ozone, et l'hydrogène sulfuré, à partir des données recueillies par les stations du Sud du Nouveau-Brunswick. 1, record 6, French, - L%27indice%20de%20la%20qualit%C3%A9%20de%20l%27air
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2002-07-11
Record 7, English
Record 7, Subject field(s)
- Anti-pollution Measures
Record 7, Main entry term, English
- environmental quality index
1, record 7, English, environmental%20quality%20index
correct
Record 7, Abbreviations, English
- EQI 1, record 7, English, EQI
correct
Record 7, Synonyms, English
- environment quality index 2, record 7, English, environment%20quality%20index
correct
- EQI 3, record 7, English, EQI
correct
- EQI 3, record 7, English, EQI
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
The Environmental Quality Index(EQI) is an aggregation of seven key environmental pressure measures : greenhouse gas emissions, water quality, air quality, dispersion of toxic substances, soil degradation, waste disposal and urban sprawl. 1, record 7, English, - environmental%20quality%20index
Record 7, French
Record 7, Domaine(s)
- Mesures antipollution
Record 7, Main entry term, French
- indice de qualité de l'environnement
1, record 7, French, indice%20de%20qualit%C3%A9%20de%20l%27environnement
correct, masculine noun
Record 7, Abbreviations, French
- IQE 2, record 7, French, IQE
correct
Record 7, Synonyms, French
- indice de qualité environnementale 3, record 7, French, indice%20de%20qualit%C3%A9%20environnementale
correct, masculine noun
- indice de la qualité de l'environnement 4, record 7, French, indice%20de%20la%20qualit%C3%A9%20de%20l%27environnement
masculine noun
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
[...] l'Irlande, et surtout la France ont un niveau de plaintes très fort par rapport à leur indice de qualité environnementale qui est assez bon. Ainsi la France est créditée d'un indice ESI [Environmental Sustainability Index - Indice Environnemental du Développement Durable] de 71, niveau nettement supérieur à la moyenne européenne de 65, et signe de systèmes environnementaux de bonne qualité [...] 5, record 7, French, - indice%20de%20qualit%C3%A9%20de%20l%27environnement
Record 7, Key term(s)
- index de qualité environnemental
Record 7, Spanish
Record 7, Campo(s) temático(s)
- Medidas contra la contaminación
Record 7, Main entry term, Spanish
- índice de calidad ambiental
1, record 7, Spanish, %C3%ADndice%20de%20calidad%20ambiental
masculine noun
Record 7, Abbreviations, Spanish
Record 7, Synonyms, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2002-05-02
Record 8, English
Record 8, Subject field(s)
- Air Pollution
- Environmental Studies and Analyses
Record 8, Main entry term, English
- emission index
1, record 8, English, emission%20index
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
- emission rate 3, record 8, English, emission%20rate
avoid
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
An emission index (EI) specifies the number of grams of pollutant emitted per kilogram of fuel burned. 2, record 8, English, - emission%20index
Record number: 8, Textual support number: 2 CONT
Research is aimed at a NOx Emission Index of 5, resulting in less than 1% annual ozone depletion.... From a technical standpoint, these critical emission levels depend on the engines’ injection and combustion system performance, i. e. the quality of the air/fuel mixture, its distribution in the combustor primary zone and the corresponding temperatures. The reduction of NOx emissions remains of primary concern, having the largest Emission Index(grams of emission produced per kilogram of fuel consumed) among the substances responsible for the ozone layer depletion. 4, record 8, English, - emission%20index
Record number: 8, Textual support number: 3 CONT
The average emission rate of the smelters was 4.1 in 1998 [that is, the result of the following division: 9.9 million tonnes CO2 Eq divided by 2.4 m tonnes of shipments equals 4.1]. [In this case, the proper expression is "emission index" and not "rate", the term "index" being the numerical expression of a rate (or proportion).] 3, record 8, English, - emission%20index
Record 8, French
Record 8, Domaine(s)
- Pollution de l'air
- Études et analyses environnementales
Record 8, Main entry term, French
- indice d'émission
1, record 8, French, indice%20d%27%C3%A9mission
correct, masculine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
Dans l'exercice mené avec le modèle POLES, l'introduction d'une taxe-carbone fictive permet de calculer l'évolution résultante des émissions, par rapport au cas de référence présenté plus haut. Ceci est illustré, au niveau mondial, par le Graphique 1 : à partir d'un indice d'émission 145 en 2010, le niveau d'émission décroît avec l'introduction d'une taxe fictive de 25 $/tC, puis 50 ... jusqu'à 350 $/tC. 1, record 8, French, - indice%20d%27%C3%A9mission
Record number: 8, Textual support number: 1 OBS
Le terme «indice» désigne une indication numérique qui sert à exprimer un rapport. Ne pas confondre avec «taux d'émission» ni avec «débit d'émission». Le terme «taux» désigne une proportion dans laquelle intervient un élément, un facteur variable, une quantité de quelque chose par rapport à une quantité d'autre chose (par exemple, on parle d'un taux d'émission de CO2 de x nombre de grammes par kilomètre pour une voiture). Le terme «débit» se rapporte à la quantité d'un polluant émis dans l'atmosphère par unité de temps. Enfin, voir aussi «facteur d'émission». 2, record 8, French, - indice%20d%27%C3%A9mission
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 1999-05-14
Record 9, English
Record 9, Subject field(s)
- Anti-pollution Measures
Record 9, Main entry term, English
- air pollution index
1, record 9, English, air%20pollution%20index
correct
Record 9, Abbreviations, English
- API 2, record 9, English, API
correct
Record 9, Synonyms, English
Record 9, Textual support, English
Record number: 9, Textual support number: 1 DEF
An arbitrary function of the concentration of one or more pollutants that is taken as a measure of the severity of pollution. For example, the following index has been used in the USA: 10 times the SO2 concentration plus de CO concentration (both in ppm by volume) plus twice the coefficient of haze. It was considered to be a cause for alarm when the value of this index rose from its average of about 12 to 50 or more. Several such indices are used, but none has more than local use, nor has any been found fully satisfactory. 3, record 9, English, - air%20pollution%20index
Record number: 9, Textual support number: 1 OBS
Not to be confused with AQI(Air Quality Index). 4, record 9, English, - air%20pollution%20index
Record 9, French
Record 9, Domaine(s)
- Mesures antipollution
Record 9, Main entry term, French
- indice de pollution atmosphérique
1, record 9, French, indice%20de%20pollution%20atmosph%C3%A9rique
correct, masculine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 OBS
indice : Indication numérique choisie pour représenter un phénomène complexe, une situation ou les caractéristiques d'un produit. 2, record 9, French, - indice%20de%20pollution%20atmosph%C3%A9rique
Record number: 9, Textual support number: 2 OBS
En matière de pollution atmosphérique, il est possible de caractériser le niveau de pollution correspondant à un polluant défini par sa concentration dans l'atmosphère. Cependant, lorsque plusieurs polluants sont présents simultanément, ce qui est généralement le cas, il devient assez compliqué d'associer à chacun d'eux sa concentration pour caractériser la situation. Des chercheurs ont tenté de définir des «indices de pollution» qui sont en général des combinaisons linéaires des concentrations des principaux polluants affectées de coefficients numériques choisis de telle sorte que les différents polluants soient pondérés les uns par rapport aux autres. 2, record 9, French, - indice%20de%20pollution%20atmosph%C3%A9rique
Record number: 9, Textual support number: 3 OBS
Ne pas confondre l'indice de pollution de l'air avec l'indice de la qualité de l'air; ce dernier désigne le niveau d'un polluant donné qu'on juge dangereux pour la santé. 3, record 9, French, - indice%20de%20pollution%20atmosph%C3%A9rique
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 1986-03-27
Record 10, English
Record 10, Subject field(s)
- Titles of Documents and Works
- Air Pollution
Record 10, Main entry term, English
- Guidelines for an Annual Air Quality Index
1, record 10, English, Guidelines%20for%20an%20Annual%20Air%20Quality%20Index
correct, Canada
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 OBS
Information found in the DOBIS data base. 1, record 10, English, - Guidelines%20for%20an%20Annual%20Air%20Quality%20Index
Record 10, French
Record 10, Domaine(s)
- Titres de documents et d'œuvres
- Pollution de l'air
Record 10, Main entry term, French
- Lignes directrices s'appliquant à l'indice annuel de la qualité de l'air
1, record 10, French, Lignes%20directrices%20s%27appliquant%20%C3%A0%20l%27indice%20annuel%20de%20la%20qualit%C3%A9%20de%20l%27air
correct, Canada
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 OBS
Information retrouvée dans la base de données DOBIS. 1, record 10, French, - Lignes%20directrices%20s%27appliquant%20%C3%A0%20l%27indice%20annuel%20de%20la%20qualit%C3%A9%20de%20l%27air
Record 10, Spanish
Record 10, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
GCtranslate (available on the Government of Canada network only)
Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.
Writing tools
The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies
Access Translation Bureau glossaries and vocabularies.
- Date Modified:


