The majority of farmers in both regions reported that they knew
some kinds of pesticides had already been banned, such as DDT,
hexachlorocyclohexanes, parathion, demeton, and thimet, which are
all highly toxic and persistent pollutants. A lower proportion paid no
attention to such bans, but the proportion was nearly 3-fold higher in
S1 than in S2 (p b 0.05).