{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Background concentrations of 18 air toxics for North America.(Clean Air Act): An article from: Journal of the Air & Waste Management Association","author_name":"Michael C. McCarthy, Hilary R. Hafner, Stephen A. Montzka","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B000EPFHV8.html\">Background concentrations of 18 air toxics for North America.(Clean Air Act): An article from: Journal of the Air &amp; Waste Management Association</a>","width":400,"height":300}