๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A simple passive sampler for measuring ammonia emission in the field

โœ Scribed by J. K. Schjoerring; S. G. Sommer; M. Ferm

Book ID
104782643
Publisher
Springer Netherlands
Year
1992
Tongue
English
Weight
597 KB
Volume
62
Category
Article
ISSN
0049-6979

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โœฆ Synopsis

A new type of passive sampler for the determination of NH 3 emission from land surfaces and manure storages was tested in a micrometereological mass balance method. The sampler consists of 2 glass tubes, each with a length of 10 cm and an internal diameter of 0.7 cm. The two glass tubes are connected in series, with one end fitted with a thin stainless steel disc having a 1 mm hole in the center. The inner surface of each glass tube is coated with oxalic acid. The results show that the passive flux sampler can be used to give accurate determinations of NH 3 emission. The passive flux sampler makes gas washing bottles, pumps, flow meters, anemometers, and electricity unnecessary and ammonia loss can be determined easily and cheaply without the requirement of a large labor force.

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At present, precise, expensive and laborious methods with a high resolution in time are needed, to determine ammonia emission rates from animal houses. The high costs for equipment, maintenance and labour limit the number of sites that can be measured. This study examines a new, simpler concept for