Nevin Rick, Jacobs David E, Berg Michael, Cohen Jonathan
National Center for Healthy Housing, USA.
Environ Res. 2008 Mar;106(3):410-9. doi: 10.1016/j.envres.2007.09.003. Epub 2007 Oct 24.
Previous estimates of childhood lead poisoning prevention benefits have quantified the present value of some health benefits, but not the costs of lead paint hazard control or the benefits associated with housing and energy markets. Because older housing with lead paint constitutes the main exposure source today in the US, we quantify health benefits, costs, market value benefits, energy savings, and net economic benefits of lead-safe window replacement (which includes paint stabilization and other measures). The benefit per resident child from improved lifetime earnings alone is $21,195 in pre-1940 housing and $8685 in 1940-59 housing (in 2005 dollars). Annual energy savings are $130-486 per housing unit, with or without young resident children, with an associated increase in housing market value of $5900-14,300 per housing unit, depending on home size and number of windows replaced. Net benefits are $4490-5,629 for each housing unit built before 1940, and $491-1629 for each unit built from 1940-1959, depending on home size and number of windows replaced. Lead-safe window replacement in all pre-1960 US housing would yield net benefits of at least $67 billion, which does not include many other benefits. These other benefits, which are shown in this paper, include avoided Attention Deficit Hyperactivity Disorder, other medical costs of childhood lead exposure, avoided special education, and reduced crime and juvenile delinquency in later life. In addition, such a window replacement effort would reduce peak demand for electricity, carbon emissions from power plants, and associated long-term costs of climate change.
此前对儿童铅中毒预防效益的评估已对部分健康效益的现值进行了量化,但未涉及铅涂料危害控制的成本或与住房及能源市场相关的效益。由于含铅涂料的老旧住房是目前美国主要的接触源,我们对安全铅窗更换(包括涂料稳定化及其他措施)的健康效益、成本、市场价值效益、节能效益及净经济效益进行了量化。仅改善终身收入一项,1940年前建造的住房中每个儿童居民的效益为21,195美元,1940 - 1959年建造的住房中为8685美元(按2005年美元计算)。无论有无儿童居民,每套住房每年的节能效益为130 - 486美元,每套住房的市场价值相应增加5900 - 14,300美元,具体取决于房屋大小和更换窗户的数量。根据房屋大小和更换窗户的数量,1940年前建造的每套住房的净效益为4490 - 5629美元,1940 - 1959年建造的每套住房为491 - 1629美元。在美国所有1960年前建造的住房中进行安全铅窗更换将产生至少670亿美元的净效益,这还不包括许多其他效益。本文所示的这些其他效益包括避免注意力缺陷多动障碍、儿童铅暴露的其他医疗成本、避免特殊教育以及减少后期生活中的犯罪和青少年犯罪。此外,这样的窗户更换行动将降低电力高峰需求、发电厂的碳排放以及气候变化相关的长期成本。