Maryland Ecosystem Services - Atmospheric Ozone Removal Economic Benefit - dollars per year

This layer quantifies the yearly economic value of removal of atmospheric ozone (O3) by trees. The forests of Maryland play an important role in reducing air pollution in the state. Trees remove pollutants from the air by absorption through leaf stomata and interception by leaves. The forest soil is also a large and important sink for air pollutants. This ecosystem service is especially important due to its effect on human health. The pollutants removed from the air by trees can have many negative effects on human health, causing or exacerbating bronchitis, cardiovascular stress, and asthma. This effect is greater in urban areas, due to the combination of there being more people to benefit and higher concentrations of air pollution in urban areas. This ecosystem service totals over $42.8 million for the state yearly. This data layer was created as part of the Maryland Department of Natural Resources "Accounting for Maryland's Ecosystem Services" program. This is a MD iMAP hosted service. Find more information on https://imap.maryland.gov. Map Service Link: https://mdgeodata.md.gov/imap/rest/services/Environment/MD_EcosystemServices/MapServer/5 Download the Ecosystem Services layers at: https://downloads.mdgeodata.md.gov/Environment%20Downloads/Ecosystem%20Services/EcosystemServices.gdb.zip本数据图层量化了树木清除大气臭氧（O3）所带来的年度经济价值。马里兰州的森林在该州空气污染治理中发挥着关键作用。树木通过叶片气孔吸收与叶片截留的方式，从空气中去除各类污染物；森林土壤亦是空气污染物的重要大型天然储汇。该生态系统服务因其对人体健康的影响而尤为重要。树木从空气中清除的污染物会对人体健康产生诸多负面影响，可诱发或加重支气管炎、心血管应激反应以及哮喘。这一效应在城市地区更为显著，原因在于城市区域受益人群更多且空气污染浓度更高。该州此项生态系统服务的年度总价值超过4280万美元。本数据图层是马里兰州自然资源部"马里兰州生态系统服务核算"项目的组成部分，依托MD iMAP平台托管运行。更多信息可访问：https://imap.maryland.gov。地图服务链接：https://mdgeodata.md.gov/imap/rest/services/Environment/MD_EcosystemServices/MapServer/5。可通过以下地址下载生态系统服务图层：https://downloads.mdgeodata.md.gov/Environment%20Downloads/Ecosystem%20Services/EcosystemServices.gdb.zip