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City of Santa Ana <br />Environmental Checklist <br />Table 3 -1. Air Quality Data from Costa Mesa Station (ARB 30195) and Anaheim - Pampas Lane <br />Station (ARB 30178) <br />Pollutant Standards 2009 2010 2011 <br />Ozone (0a) <br />State Standard (1- HourAverage = 0.09 ppni) <br />National Standard (8-Hour Average = 0.075 ppm) <br />Maximum Concentration 1 -Hour Period (ppm) <br />0.087 <br />0.097 <br />0.093 <br />Maximum Concentration 8-Hour Period (ppm) <br />0.072 <br />0.076 <br />0.077 <br />Days State 1 -Hour Standard Exceeded <br />0 <br />1 <br />0 <br />Days National B -Hour Standard Exceeded <br />0 <br />1 <br />1 <br />Carbon Monoxide (CO) <br />State Standard (8- HourAverage = 9 ppm) <br />National Standard (8- HourAverage = 9 ppm) <br />Maximum Concentration 8 -How- Period (ppm) <br />2.16 <br />2.09 <br />2.22 <br />Days State/National 8-Hour Standard Exceeded <br />0 <br />0 <br />0 <br />Nitrogen Dioxide (NO2) <br />State Standard (1- HourAverage = 0.18 ppm) <br />Maximum 1 -Hour Concentration <br />0.065 <br />0.070 <br />0.061 <br />Days State Standard Exceeded <br />0 <br />0 <br />0 <br />Suspended Particulates (PM10) <br />State Standard (24- HourAverage = 50 pg 1m3) <br />National Standard (24-HourAverage = 150 pg /m3) <br />Maximum State 24 -Hour Concentration <br />62.0 <br />43.0 <br />53.0 <br />Maximum National 24 -How• Concentration <br />97.4 <br />43.0 <br />53.0 <br />Days Exceeding State Standard <br />1 <br />0 <br />0 <br />Days Exceeding National Standard <br />0 <br />0 <br />2 <br />Suspended Particulates (PM2.5) <br />National Standard (24 -Hour Average = 35 pg /W) <br />Maximum 24 -Hour Concentration <br />64.5 <br />31.7 <br />39,2 <br />Days Exceeding National Standard <br />5 <br />0 <br />2 <br />Notes: <br />ppm = parts per million <br />µg /m; = microgram per cubic meter <br />Source: ARB 2012. <br />Sensitive Receptors and Locations <br />Some population groups, such as children, the elderly, and acutely and chronically ill persons, <br />especially those with cardio- respiratory diseases, are considered more sensitive to air pollution <br />than others. Sensitive receptors in the vicinity of the project include residential land uses located on <br />all sides of the project site, approximately 25 meters (about 82 feet) away, as well as the Lincoln <br />Elementary School that is located approximately 300 (about 984 feet) meters to the north of the <br />project site. <br />The oat Buddhist Meditation Center June 2013 <br />Initial Study /Mitigated Negative Declaration 3-13 ICF 00215.12 <br />31 C -66 <br />