美国环保署(EPA)发布了资源保护和回收法案(RCRA)减少废弃物中可生物积聚和有毒(PBT)化学品名单。EPA认为PBT化学品释放到环境中会引起长期的环境问题。防护涂料协会说,考虑到一些涂料制造商的担忧,EPA的RCRA PBT化学品名单包括了锌和萘废弃物。锌粉末常常用于钢材表面防护涂 The US Environmental Protection Agency (EPA) issued the Resource Conservation and Recovery Act (RCRA) to reduce the list of bioaccumulative and toxic (PBT) chemicals in waste. EPA believes that the release of PBT chemicals into the environment will cause long-term environmental problems. The Protective Coatings Association said that taking into account the concerns of some paint manufacturers, the EPA’s list of RCRA PBT chemicals includes zinc and naphthalene waste. Zinc powder is often used for protective coating on steel surfaces