Vertical distribution of gases and aerosols: The behaviour of ammonia and related components in the lower atmosphere
Abstract
Vertical concentration profiles for NH 3, HNO 3 and HCl-gas and for NH 4+, NO 3-, SO 2-4, Cl - and Na + aerosol were obtained from a meteorological tower in the central part of the Netherlands. An upward NH 3 flux of 0.12 μgm -2 s -1 was calculated from the NH 3 profiles and meteorological data. From the HNO 3 profiles a maximum HNO 3 dry deposition velocity of 4 cm s -1 was calculated. Good agreement was found between the measured concentration products [NH 3] (g) × [HNO 3] (g) and the theoretical values at temperatures above 0°C and relative humidities below 80%. In other cases, higher NH 3 and/or HNO concentrations in the gas phase were measured than theoretically predicted.
- Publication:
-
Atmospheric Environment
- Pub Date:
- 1988
- DOI:
- 10.1016/0004-6981(88)90345-9
- Bibcode:
- 1988AtmEn..22.1153E