| Popis: |
The chlorine component of total suspended paniculate (TSP) measured in the Houston-Galveston area during 10 days in June and September, 1975 has been examined for spatial variation and correlation with wind speed. The background concentrations of chlorine vary over an order of magnitude (from 0.2 to 6.6 μg m −3 ), and are found to depend on wind speed and direction. Higher background concentrations are associated with inland penetration of fresh marine air from the Gulf of Mexico. These background [Cl] variations are taken into account in order to identify anthropogenic [Cl] sources. Significant non-marine sources of [Cl], located in the industrialized Pasadena-Houston Ship Channel area, are evident in our data. |
