Authors are encouraged to submit figures on disk. If figures are supplied on disk, a clean printout or original of the figures must also be supplied. For all figures, authors should consider the reduction ratio to ensure that all lettering and numbers within the figures will be readable after reduction. Figures should be grouped together at the end of the manuscript rather than inserted within text. All figures must be numbered consecutively in Arabic numerals as they are cited within the text.
All figures require captions.
List figure captions together on one page, and clearly identify the actual figures placed at the end of the manuscript. For each caption, place the figure number in bold type, flush left, followed by a period and a space. Comparison of air quality in 1988 at two urban sites. After a manuscript has been accepted for publication, the word-processed manuscript must be submitted on disk. Extraneous codes within the document should be eliminated.