ZHANG Fu-Jin, ZHANG Xin-Xin, LI Guo-Yin, FENG Xiao-Hui, REN Chao, LUO Hong, GAO Tian-Yun
. 2013, 1(14): 81.
Mathematical statistic analysis was carried out on 6 800 samples of veggies，fruits，
beans，nuts and seeds produced in Inner Mongolia. The results showed that the dominated vegetables
in Inner Mongolia were green leaf vegetables，potato family vegetables and melons，and their yields accounted for 70% of the total vegetables production. Since 2003，with the rapid increase of
detected vegetable numbers，the status of vegetable quality safety had entered into a new stage of
sustainable steady after a rapid decline or periodic fluctuation，and the differences in safety levels
were obvious，of which the range of exceeding standard rate of pesticide residues in eggplants，melons
and beans（about 55% of the total vegetables）was under 2%，with a mean of 1.1%，1.6% and
3.1%，respectively. They belonged to stable type. The exceeding standard rate of pesticide residues
in green leaf vegetables and Chinese cabbage（about 30% of total vegetables） presented a decreasing
trend year by year，wondering in the range of 7%-10%．They belonged to risk main body type．The
time period of exceeding standard of pesticide residues in root vegetables and cabbage was under
predictable，and in some years its exceeding standard rate was over 5%（amplitude variation was
over 15 percentage points）．They belonged to random risk type．The kinds of pesticides，which
exceeding standard rate in vegetables were relatively intensive，presented variance in different
vegetable species．70% of the pesticides belonged to intermittent over-limits and the probability was
below 5%．About 20% tradition pesticides often exceed standard and their probabilities were over
30%．The exceeding standard of organophosphorus and carbamates pesticides in vegetables presented a
decreasing tend，while the risk of some new type pesticides containing nitrogen atoms and high effective
pyrethroid insecticide showed an increasing tendency.
