| 000 | 00000nam 2200000zi 4500 |
| 001 | 9.918972 |
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| 003 | CaOODSP |
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| 005 | 20241203113656 |
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| 006 | m o d f |
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| 007 | cr bn||||||||| |
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| 008 | 230110t19901990oncab ob f000 0 eng d |
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| 020 | |a0662176685 |q(print) |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 041 | 0 |aeng|beng|bfre |
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| 043 | |an-cn--- |
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| 045 | |ax7x8 |
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| 086 | 1 |aEn49-9/7-3E-PDF |
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| 086 | 1 |aEn49-8/7-3E |
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| 245 | 00|aNational urban air quality trends, 1978-1987 / |cby Inventory Management Division, Regulatory Affairs and Program Integration Branch, Environmental Protection, Conservation and Protection, Environment Canada. |
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| 264 | 1|a[Ottawa] : |bEnvironment Canada = Environnement Canada, |c1990. |
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| 264 | 4|c©1990 |
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| 300 | |a1 online resource (xiv, 60 pages) : |billustrations, maps. |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |aEnvironmental protection series |
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| 500 | |aIssued also in French under title: Évolution de la qualité de l'air des villes au Canada, 1978-1987. |
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| 500 | |aErrata slip inserted. |
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| 500 | |a"Report EPS 7/UP/3." |
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| 500 | |a"May 1990." |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references (pages 47-49). |
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| 546 | |aIncludes abstracts in English and French. |
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| 650 | 0|aAir quality|zCanada. |
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| 650 | 0|aAir|xPollution|zCanada|xMeasurement. |
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| 650 | 0|aEnvironmental monitoring|zCanada. |
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| 710 | 1 |aCanada. |bEnvironment Canada, |eissuing body. |
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| 710 | 1 |aCanada. |bConservation and Protection, |eissuing body. |
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| 830 | #0|aEnvironmental protection series reports.|w(CaOODSP)9.851520 |
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| 856 | 40|qPDF|s6.27 MB|uhttps://publications.gc.ca/collections/collection_2023/eccc/en49/En49-9-7-3-eng.pdf |
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