Impact Factor
4.97
Estimated influence, citation density, publishing volume, and citation integrity from the analytics table.
Volume, recency, access pattern, and citing-community signals from the journal analytics record.
Recent article records with DOI-first linking and condensed abstracts.
One issue annually, Sept. 1993- consists of the 1994- Environmental buyers' guide edition.
Imprint varies.
Also issued online.
Vol. 24, no. 1 (JAN 1990)19890828 Notice not published Printed on acid-free paper