Simon thernton-Woodirectorirectof of science and learning at the RHS, said: "Gardens, like parks, are the green lungs of cities, improving air quality, controlling air temperature and flood risk and providing a haven for wildlife.
Rice plant pot experiments designed to identify benzo[a]pyrene (B[a]P) sources in plant tissues were conducted in an air-quality controlled greenhouse built to prevent contamination from B[a]P air pollution.
The B[a]P content of rice grain, husk, and stem with leaf sampled from outdoor field was up to 7.33-, 9.21- and 27.10-fold 27.10-foldn corresponding tissues from air-quality controlled conditions.
§ 81.36 Maricopa Intrastate Air Quality Control Region.
§ 81.67 Lake Michigan Intrastate Air Quality Control Region.
§ 81.132 Abilene-Wichita Falls Intrastate Air Quality Control Region.
§ 81.174 Pawnee Intrastate Air Quality Control Region.
§ 81.176 San Luis Intrastate Air Quality Control Region.
§ 81.177 Yampa Intrastate Air Quality Control Region.
§ 81.199 East Alabama Intrastate Air Quality Control Region.
§ 81.275 Lake Tahoe Intrastate Air Quality Control Region.
