
77-1
77.1 Introduction
ere is a huge range of atmospheric pollutants and for a given pollutant there may be several com-
mercially
av
ailable
de
tection
sy
stems
. In a do
cument
of th
is
siz
e,
it is cl
early
no
t
fe
asible
to di
scuss
in
detail the theory of operation of every possible system. Aer some general remarks about air pollution
monitoring, a broad introduction to the physics of molecular spectroscopy (the most widely used detec-
tion principle) will be presented. e detection of individual pollutants will then be discussed. Most of
the practical examples given will refer to British experience, since this reects the author’s background.
e pr ...