000 01632nam  2200277za 4500
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008150407|1996||||xxc|||||     f|0| 0 eng d
020 |a0-662-25637-9
040 |aCaOODSP|beng
043 |an-cn---
0861 |aEn42-17/5-1-1997E
1101 |aCanada.|bEnvironment Canada. |bFederal-Provincial Working Group on Air Quality Objectives and Guidelines.
24512|aA protocol for the development of national ambient air quality objectives part 1: science assessment document and derivation of the reference level(s)
260 |aOttawa - Ontario : |bEnvironment Canada. |c1996.
300 |aiii, 49p. : |c28 cm.
500 |a"This document explains how scientific information is obtained, evaluated, and published in support of National Ambient Air Quality Objectives (NAAQOs). The rest of this section outlines the legal basis and development process."--Introduction.
504 |aBibliography.
5203 |aThis document explains how scientific information is obtained, evaluated, and published in support of National Ambient Air Quality Objectives (NAAQOs). The rest of this section outlines the legal basis and development process.--Introduction
563 |aSpiral binding
590 |a97-42|b1997-10-17
69007|aAir quality|2gcpds
77508|tProtocole pour l'élaboration des objectifs nationaux de qualité de l'air ambiant partie 1: rapport d'examen scientifique et détermination des niveaux de référence |w(CaOODSP)9.680101
7760#|tA protocol for the development of national ambient air quality objectives |w(CaOODSP)9.867364