Air pollution causes an estimated 200,000 deaths per year in the United States alone. Older adults are at greater risk of mortality caused by air pollution. Here we quantify the number of older adult facilities in Los Angeles County that are exposed to high levels of traffic derived air pollution, and propose policy solutions to reduce pollution exposure to this vulnerable subgroup. Distances between 20,362 intersections and 858 elder care facilities were estimated, and roads or highways within 500 of facilities were used to estimate traffic volume exposure. Of the 858 facilities, 54 were located near at least one major roadway, defined as a traffic volume over 100,000 cars/day. These 54 facilities house approximately 6,000 older adults. Following standards established for schools, we recommend legislation mandating the placement of new elder care facilities a minimum of 500 feet from major roadways in order to reduce unnecessary mortality risk from pollution exposure.

中文翻译：

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尽量减少空气污染暴露：一项保护弱势老年人免于死亡和残疾的实用政策

据估计，仅在美国，空气污染每年就造成 200,000 人死亡。老年人因空气污染而面临更大的死亡风险。在这里，我们量化了洛杉矶县暴露于高水平交通造成的空气污染的老年人设施的数量，并提出了政策解决方案，以减少这一弱势群体的污染暴露。估计了 20,362 个十字路口和 858 个老年护理设施之间的距离，并使用 500 个设施内的道路或高速公路来估计交通量暴露。在 858 个设施中，54 个位于至少一条主要道路附近，定义为交通量超过 100,000 辆/天。这 54 个设施可容纳约 6,000 名老年人。遵循为学校制定的标准，