而且Maricopa镇还聘请了在圣约魁谷进行污染防治工作的官员。
Moreover, Maricopa County has hired an official involved in San Joaquin Valley's pollution-abatement effort.
好消息说加利福尼亚州圣约魁谷周边地区之前由于空气微粒问题被列入百分五计划，目前已显示防尘方案是有效的。
The good news is that California's San Joaquin Valley, the other region to fall under the Five Percent Plan because of particulate matter, has shown that dust-reduction measures can work.
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