Release and transformation of nanoparticle additives from surface coatings on pristine & weathered pressure treated lumber.

ABSTRACT: As the market for "nano-enabled" products (NEPs) continues to expand in commercial and industrial applications, there is a critical need to understand conditions that promote release of nanomaterials and their degradation products from NEPs. Moreover, these studies must aim to quantify both the abundance and form (aggregates, ions, hybrids, etc.) of material released from NEPs to produce reasonable estimates of human and environmental exposure. In this work ZnO nanoparticles (NPs), a common additive in NEP surface coatings, were dispersed in Milli-Q water and a commercially available wood stain before application to pristine and weathered (outdoor 1 year) micronized copper azole pressure treated lumber (MCA). Coated lumber surfaces were sampled consecutively eight times using a method deve

SUBMITTER: Thornton SB 

PROVIDER: S-EPMC8025203 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature