232
A. Z. Yaser and N. N. Safie
Table 7
(continued)
Parameters South Korea 1
WHO 2
Cyprus 3
France
Portugal
Spain
BOD
(mg/L)
≤8
–
Cooked
vegetables
≤15
–
–
–
Crops for
human
consumption
≤30
COD
(mg/L)
–
–
–
Unrestricted <60
–
–
All crops
except
those
consumed
raw
Varies
Intestinal
nematodes
–
≤1
ND
–
≤ 1
≤1 (/10 L)
pH
5.8–8.5
–
–
–
6.5–8.4
–
EC
(µs/cm)
Food
crops
≤700
–
–
≤1000
–
Processed
food crops
≤2,000
ND
= not detected; TC
= total coliform; FC
= fecal coliform; TSS
= total suspended solids; FC
= food crops; PFC
= Process food crops; R
= restricted
UR
= unrestricted. 1
Standards for direct wastewater reuse. 2
The most stringent verification monitoring level, which refers to what has previously been referred
to as effluent guideline levels, for each irrigation type and arithmetic mean value. 3
For vegetables eaten raw is not allowed and maximum value allowed. a
No
recommendation. b
In accordance with wastewater treatment standards
Source
Jeong et al. (2016)