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MAXIMUM ACCEPTABLE CONCENTRATION [9 records]

Record 1 2026-02-16

English

Subject field(s)
  • Anti-pollution Measures
  • Air Pollution
  • Collaboration with Health Canada
CONT

Guideline values are intended to represent the maximum [particulate matter] concentration acceptable for the protection of human health and the environment...

French

Domaine(s)
  • Mesures antipollution
  • Pollution de l'air
  • Collaboration avec Santé Canada
CONT

Les valeurs guides de l'Organisation mondiale de la Santé, OMS [...], sont élaborées à partir d'études (épidémiologiques, toxicologiques et d'expérimentations cliniques) qui relient les concentrations des polluants dans l'air ambiant à des pathologies identifiées, principalement de type respiratoire. [...] Les études aboutissent à des valeurs dites «guides», c'est-à-dire, des valeurs à partir desquelles des effets sur la santé sont observés ou suspectés.

Spanish

Save record 1

Record 2 2012-06-27

English

Subject field(s)
  • Environmental Studies and Analyses
  • Analytical Chemistry
  • Water Pollution
CONT

As described in the sampling protocol [of the Potable Water Sampling Procedures Manual], first-draw samples were taken and analyzed for the following metal parameters : copper, lead and zinc. First-draw samples are taken to provide background information and are used to develop preventive action plans for the building's water distribution. It is not uncommon for first-draw samples to show metals content above the GCDWQ [Guidelines for Canadian Drinking Water Quality] Maximum Acceptable Concentration(MAC), which applies only to five-minute draw samples. The first-draw sample results are compared to the five-minute draw MAC to determine the overall condition of the distribution system. The five-minute sample is compared to the GCDWQ standards to determine whether the water is safe for consumption. The results from the zero-minute samples tested for lead ranged in value from less than 0. 005 mg/L to 0. 03 mg/L. All five-minute lead results were less than 0. 005 mg/L...

Key term(s)
  • zero minute sample
  • zero minute draw

French

Domaine(s)
  • Études et analyses environnementales
  • Chimie analytique
  • Pollution de l'eau
OBS

Échantillon prélevé dès l'ouverture du robinet, et non après un nombre X de minutes d'écoulement. Équivalent et renseignements obtenus d'Environnement Canada.

OBS

L'expression «au temps zéro» est bien attestée. Nous avons relevé les expressions «concentration au temps zéro», «essai au temps zéro», «mesure au temps zéro», «présence (d'une substance X) détectée au temps zéro».

Spanish

Save record 2

Record 3 2012-06-27

English

Subject field(s)
  • Environmental Studies and Analyses
  • Analytical Chemistry
  • Water Pollution
CONT

As described in the sampling protocol [of the Potable Water Sampling Procedures Manual], first-draw samples were taken and analyzed for the following metal parameters : copper, lead and zinc. First-draw samples are taken to provide background information and are used to develop preventive action plans for the building's water distribution. It is not uncommon for first-draw samples to show metals content above the GCDWQ [Guidelines for Canadian Drinking Water Quality] Maximum Acceptable Concentration(MAC), which applies only to five-minute draw samples. The first-draw sample results are compared to the five-minute draw MAC to determine the overall condition of the distribution system. The five-minute sample is compared to the GCDWQ standards to determine whether the water is safe for consumption. The results from the zero-minute samples tested for lead ranged in value from less than 0. 005 mg/L to 0. 03 mg/L. All five-minute lead results were less than 0. 005 mg/L...

Key term(s)
  • five minute draw
  • five minute sample

French

Domaine(s)
  • Études et analyses environnementales
  • Chimie analytique
  • Pollution de l'eau
OBS

S'oppose à l'échantillon prélevé «au temps zéro» (en anglais : «zero-minute sample»), c'est-à-dire dès l'ouverture du robinet. Équivalent et renseignements obtenus d'Environnement Canada.

Spanish

Save record 3

Record 4 2006-10-18

English

Subject field(s)
  • Environmental Studies and Analyses
  • Hygiene and Health
  • Water Pollution
CONT

The maximum acceptable concentration(MAC) for trihalomethanes1(THMs) in drinking water is 0. 100 mg/L(100 ug/L) based on a locational running annual average of a minimum of quarterly samples taken at the point in the distribution system with the highest potential THM levels.

French

Domaine(s)
  • Études et analyses environnementales
  • Hygiène et santé
  • Pollution de l'eau
CONT

La concentration maximale acceptable (CMA) pour les trihalométhanes1 (THM) dans l'eau potable est de 0,100 mg/L (100 ug/L), sur la base d'une moyenne courante annuelle par emplacement calculée à l'aide d'échantillons au moins trimestriels prélevés au point du réseau de distribution susceptible de présenter les plus hautes concentrations de THM.

Spanish

Save record 4

Record 5 2004-03-18

English

Subject field(s)
  • Environmental Studies and Analyses
  • Analytical Chemistry
  • Water Pollution
CONT

As described in the sampling protocol [of the Potable Water Sampling Procedures Manual], first-draw samples were taken and analyzed for the following metal parameters : copper, lead and zinc. First-draw samples are taken to provide background information and are used to develop preventive action plans for the building's water distribution. It is not uncommon for first-draw samples to show metals content above the GCDWQ [Guidelines for Canadian Drinking Water Quality] Maximum Acceptable Concentration(MAC), which applies only to five-minute draw samples.

CONT

The metal parameters monitored at this site were lead, copper, zinc, cadmium, chromium, nickel, and arsenic. Excessive concentrations of heavy metals are toxic to humans, therefore, metals are subject to State and Federal drinking water quality standards. Lead, copper, zinc, and cadmium are the metals which typically exhibit greater concentrations than other metals found in urban runoff ...

French

Domaine(s)
  • Études et analyses environnementales
  • Chimie analytique
  • Pollution de l'eau
CONT

Origines et conséquences des altérations de la qualité de l'eau potable dans les réseaux. [...] Origine : Défaut du réseau. [...] Dangers : [...] Altération des paramètres métaux (Fe, Zn, Pb, Cu, Cd, etc.)

OBS

Il n'est pas nécessaire d'utiliser la traduction littérale complète «paramètres métaux» en contexte. Il est plus élégant de ne parler que de l'étude des paramètres XXX (tout court) ou des métaux XXX (tout court). C'est suffisamment clair, surtout si on énumère par la suite les métaux concernés. Enfin, il ne faut surtout pas utiliser une expression comme «paramètres métalliques», ce qui serait absurde.

Spanish

Save record 5

Record 6 2004-02-16

English

Subject field(s)
  • Environmental Studies and Analyses
  • Toxicology
PHR

Species maximum acceptable toxicant concentration(SMATC).

French

Domaine(s)
  • Études et analyses environnementales
  • Toxicologie
PHR

Concentration maximale acceptable de toxiques pour une espèce (CMATE).

Spanish

Save record 6

Record 7 1986-01-07

English

Subject field(s)
  • Air Pollution
  • Environmental Studies and Analyses
DEF

A day on which at least one station episode occurs.

OBS

Station Episode : Ozone concentration greater than one-hour maximum acceptable level for three or more consecutive hours.

French

Domaine(s)
  • Pollution de l'air
  • Études et analyses environnementales

Spanish

Save record 7

Record 8 1986-01-07

English

Subject field(s)
  • Air Pollution
  • Environmental Studies and Analyses
DEF

The occurrence on the same day of three or more station episodes in a specified geographic area.

OBS

Station Episode : Ozone concentration greater than one-hour maximum acceptable level for three or more consecutive hours.

French

Domaine(s)
  • Pollution de l'air
  • Études et analyses environnementales

Spanish

Save record 8

Record 9 1986-01-07

English

Subject field(s)
  • Air Pollution
  • Environmental Studies and Analyses
DEF

Ozone concentration greater than one-hour maximum acceptable level for three or more consecutive hours.

French

Domaine(s)
  • Pollution de l'air
  • Études et analyses environnementales

Spanish

Save record 9

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