| doc-title | Impact of Roadside Tree Lines on Indoor Concentrations of Traffic-Derived Particulate Matter |
| quote | Here, we ... measure changes in PM10 concentrations inside a row of roadside houses, after temporarily installing a curbside line of young birch trees. Independently, the two approaches identify >50% reductions in measured PM levels inside those houses screened by the temporary tree line. |
| source | Barbara A. Maher and Imad A. M. Ahmed of Lancaster University |