美国环境保护署表示，它已经为一种名为“NSPW-L30SS”或“Nanosilva”的含有纳米银的抗菌农药产品颁发了注册证书。
这种银基产品将用作非食品接触防腐剂，以保护塑料和纺织品免受引起异味和污渍的细菌、真菌、霉菌和霉菌的侵害。要处理的物品包括例如家居用品、电子产品、运动装备、医院设备、浴室装置和配件。
EPA表示，其决定是基于其在审查了申请人的暴露数据和其他有关纳米银的信息以及科学文献数据后对纳米银危害的评估。这些数据表明，用 NSPW-L30SS 处理的塑料和纺织品会释放出极少量的银。
“Based on this evaluation, the Agency determined that NSPW-L30SS will not cause unreasonable adverse effects on people, including children, or the environment and that it would be beneficial because it will introduce less silver into the environment than competing products. EPA is also requiring the company to generate additional data to refine the Agency’s exposure estimates,” EPA said.