Māris kļaviņŠ, azamat azizov, JĀnis zaļoksnis environment, pollution, development: the case of uzbekistan

Figure 9.4. 
DDT. Formula 
of 1,1,1-trichloro-2,2-
bis(4-chlorophenyl)
ethane (DDT)

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9. POLLUTION OF SOIL 
 193
by pesticides is determined by their extensive use in agriculture. 
One of the main factors contributing to the migration of pesticides in 
groundwaters is their solubility. If organochlorine pesticide solubility 
is some milligrams per liter, other pesticides may have a solubility 
of 100-1000 mg/l. Over the course of time, as pesticides leak into 
groundwater, they can be washed into the underground waters – the 
source of drinking water.
0
5
10
15
20
25
30
Less developed 
countries
Development 
countries
OECD 
countries
Consum
prion, 
tons/k
m
2
Insecticides
Fungicides
Herbicides
0
20
40
60
80
100
120
140
1963
1968
1973
1978
1983
1988
1993
1998
2008
Consumption, kg/ha
Industrially developed countries
Development countries
0
50
100
150
200
250
Ecuador
Turkey
Canada
Brasil
India
Australia
China
USA
Active substances, tons