Ambient assessment-air portion.
| Corporate Author: | |
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| Format: | Government Document Serial |
| Language: | English |
| Published: |
Research Triangle Park, NC :
U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards.
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| Subjects: |
| Item Description: | "EPA-450/4-81-014." 1980. Description based on: 1980; title from cover. |
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| Physical Description: | volumes : illustrations ; 28 cm. Vols. for <1980-> distributed to depository libraries in microfiche. |
| Publication Frequency: | Annual |