Offline Database
Healthdata was also available as a disc based offline database, also in the viewdata format. It seems as if it was mostly a copy of the online content, so we present it here for your delight and access..
Do note that this information is at least 20 years old. Please do not rely on anything in here as current medical advice; for that please visit
the NHS website.
Industrial pollution
Industrial waste finds its way into
rivers and the sea. Oil and chemicals
damage wildlife.
Heavy metals, such as mercury, are
readily taken up by fish. Toxic levels
may be found in fish used for food.
Factories must apply for permission
to discharge effluent into rivers or
sewers. Water authorities check the
effluent for dangerous chemicals. Soon
these rules will apply to factories
discharging waste into the sea.
Waste is also dumped at sea. This
needs to be monitored and controlled.
Nitrates - key 1
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