title: Differential optical absorption spectroscopy system used for atmospheric mercury monitoring.
abstract: A high-resolution differential optical absorption spectroscopy (DOAS) system for long-path atmospheric pollution monitoring is described. The system, consisting of a broadband lamp and a dispersive, fast-scanning optical receiver, separated by a few kilometers, was used in measurements of different pollutants, highlighted by the monitoring of the local concentration of atomic mercury. Mercury levels in the ppt (1:10(12)) range were assessed by comparisons with laboratory measurements.
authors.affiliation: Lund Institute of Technology, Physics Department, P.O. Box 118, S-221 00 Lund, Sweden.
authors.forename: H
authors.initials: H
authors.lastname: Edner
authors.forename: A
authors.initials: A
authors.lastname: Sunesson
authors.forename: S
authors.initials: S
authors.lastname: Svanberg
authors.forename: L
authors.initials: L
authors.lastname: Unéus
authors.forename: S
authors.initials: S
authors.lastname: Wallin