Scientists dont really know much about the
long-term effects of grey water use on soils, but
in the short-term plants generally grow very well
with grey water. While there are few issues that
have been raised about the use of grey water for
growing ornamental plants, there are some
potential problems that arise from the use of grey
water for crop irritation.
Grey water is
generally a term used to describe water that is
the byproduct of household activities, like
laundry or washing dishes. As a result, this water
can contain pathogens (think diseases) that can
live on agricultural products that people will
later eat, causing them to get sick.
Industrial waste water is also sometimes
considered to be grey water. This water, though
often cleaned, can contain heavy metals, like
cadmium or lead, that are very harmful to people.
When it is used to irrigate agricultural fields
which often happens in places where people are
very poor and do not have access to cleaner water
it can contaminate food (especially root
vegetables). This can pose serious health risks