7- AA19-04; TPM19-01;DA18-02_2800 N MAIN STREET

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project site. Air Quality information from this station can be assumed to be indicative of the general air quality for the project area. Air quality data for the year 1981, the most recent year for which annual air quality data are available, are presented in Table 17 for the Anaheim Station. As shown in the table, the State standard for carbon monoxide (CO >9 ppm), 8-hour standard) was exceeded for 4 days; the State oxidant standard Ox»= .10 ppm, 1-hour average) was exceeded 65 days; the State nitrogen dioxide standard (NOx»= .25 ppm, 1-hour Ku average) was exceeded a total of 4 days; and the particulate matter 3 standard (TSP ` 100 ug/m , 24-hour) was exceeded a total of 26 days. I - The Federal standard for carbon monoxide (CO »= 9ppm, 8-hour) was exceeded for 14 days, the Federal standard for oxidant (0 > .I2ppm, x I - 1-hour) was exceeded on 32 days; particulate matter (TSP > 260 ug/m K 24-hour) was exceeded one day. 5.8.2 Project Impacts Li; Short-Term Impacts U The construction phase of the project would produce two sources of air pollution emissions. These are exhaust emissions from construction and grading equipment and dust generated as a result of U earth movement and equipment traffic on local streets. The dust -* emissions may cause a nuisance to persons and businesses located on adjacent properties or along roadways used by the earth-moving equipment or to motorists who park motor vehicles in the vicinity of the project. The exhaust emissions would be of short-term duration during the construction phase only. Based on EPA estimates of dust emissions from construction projects, an estimated 80. pounds of dust per day per acre of grading activity is expected to occur. The actual daily dust emissions would vary depending on the amount of land and the type of soil being graded. Upon completion of construction, the dust emissions would cease. 127