Abstract |
This report summarizes air quality data gathered during 1964 and 1965 at nearly 300 stations that gathered bi-weekly samples of suspended particulate matter, about 30 stations that gathered bi-weekly samples of two gaseous pollutants, and another seven stations that continuously monitored six gaseous pollutants, suspended particulates, and soiling index. This volume also continues the policy of including summaries of data contributed by state and local agencies that operate their own air sampling networks. In addition to the basic data on suspended particulates and gases, data on several fractions of the particulate matter are included herein. These are generally presented for years earlier that 1964-1965, not only because the chemical analysis of the particulate samples behind the primary weight determination, but also because expanded laboratory capacity has permitted the analysis of earlier samples held in reserve. |