Review:
The concept might be relatively simple but the final product
is anything but. The overall idea was to produce a text which
gave the barest essential chemistry needed to start to understand
a range of environmental situations. Within this slim A4-sized
text there are over 50 double-page spreads divided into 9 unequal
sections which do just that.
If,
as the authors reasonably assert, environmental chemistry is
on the rise in universities then it is important that there
is some basic information to give the students especially if
the school science situation is looking as dire as it is in
some countries e.g. UK. It is from this background that the
authors start. The first section looks at the surface of the
planet. It starts with a basic overview of rocks and minerals.
The Earth's elemental composition is given followed by a very
brief description of rock types and minerals. This is followed
by weathering processes and a very short account of the major
types of weathering. Subsequent topics follow the same idea
with just the bare bones outlined and the focus being on chemistry
as one might expect. Section two looks at soil and soil processes
- development, horizons, typology etc. It might be that this
area is quite restricted compared with the first but the amount
of detail seems more appropriate. Here is both the advantage
and disadvantage of such a system. For a narrow focus this is
a great resource. When one look at a broader canvas e.g. geology,
then it is obvious that the amount of information that can be
given is far less in relation to the whole. After soils, the
focus turns to sediments with just two topics on processes and
environment. This is followed by other equally brief sections
dealing with hydrosphere, atmosphere and biosphere respectively.
The usual key ideas are represented. Next there's a section
on physical, chemical and biological interactions. At first
this might seem an unusual title but it deals with three key
topics - environmental temperatures, water movement and gas
exchange. Before looking at a final section on pollution, there's
a very good overview there's and excellent section on the biogeochemical
cycles (C, N, S, P and K) which allows the reader to compare
easily the key features of each. As noted, the final section,
one of the largest, deals with pollution from agriculture, land
and atmosphere. Whereas this might be seen as an unusual selection
it does deal with major sources of current interest.
Overall,
this is an excellent text. As can be seen above there are a
few gaps one might light to see covered, some less usual additions
and varying levels of coverage. Against this must be set the
near impossibility of the task, the obvious disparities in information
to start with and the difficulty in defining let alone reaching
a common standard against which to adhere. However, these are
small issues compared with the excellence of what has been achieved.
All the main topics one would want are there. The chemistry
is easy enough for the lay person to grasp. It puts a far more
rigorous approach to the ecological and environmental education
and emphasises the need to put science at the forefront. It
should be a key book on every library shelf.