Supporting Information
1. Background of Wenyu River catchment
Wenyu River is the mother river located at the northeast of Beijing. As a river flowing through the
northern and eastern regions of Beijing, with a high density of residential areas and industries, the
Wenyu River is the ultimate receiving waste water in this urban area. The length of main stream is
about 47.5km, and the entire catchment area is about 2478 square kilometers. Three main tributaries
of Wenyu River catchment contains Beisha River, Dongsha River, Nansha River, which of them flow
into Shahe Reservoir. At the downstream of Wenyu River catchment, there are Ninggou River, Qing
River, Ba River and other small tributaries. Annual average temperature is about 11.6℃ and the
average monthly rainfall is 619 mm in this catchment. More than 80% of the annual rainfall is from
the summer flood season. At the same time, Wenyu river catchment combined with the urbanization
area of Beijing, which land types contain urban and rural residents area, industrial land area, forest
area and others. The catchment was impacted by human activities. According to the survey, sewage
treatment plant water volume is about 892300 m3/d, which flow into main streams and tributaries of
this catchment. The type of the wastewater contains industrial and household wastewater. Current
monitoring studies have indicated the general occurrence of NP, BPA, estrogen, and other EDCs in
the river catchment.
2. Table S1 hydrologic information of these 40 segments in Wenyu River catchment
Stretch-ID
Name
Qmean(m3/s)
Length(m)
1
boyukou
0.147
26503.8
2
gaoyakou
0.705
21303.1
3
beiheheone
0.852
2671.42
4
xinglongkou
0.816
29765.5
5
beihehetwo
1.68
5857.23
6
huyukouone
0.461
7067.54
7
huyukoutwo
0.461
11688.1
8
beihehethree
2.141
2628.33
9
zuishikou
0.956
19942.8
10
dongshaheone
0.485
12963.3
11
dongshahetwo
0.473
5092.59
12
beihehefour
2.614
4639.7
13
nanshahe
0.003
28063.9
14
shaheone
3.052
2395.92
15
shahetwo
1.445
11372.8
16
riverone
0.147
15189.2
17
rivertwo
0.147
5303.16
18
zhuanziling
0.114
23306.1
19
riverthree
0.261
1381.06
20
taoyukou
0.175
21289.9
21
mangniubao
0.398
18426.3
22
riverfour
0.573
2102.7
23
riverfive
2.454
1312.5
24
wenyuheone
3.989
4457.88
25
wenyuhetwo
9.609
1100.86
26
wenyuhethree
9.612
4799.72
27
qingheone
1.276
15115.5
28
qinghetwo
1.276
4378.88
29
qinghethree
1.276
9554.07
30
qinghefour
1.276
6623.74
31
wenyuhefour
11.5
6326.6
32
wenyuhefive
12.728
16022.3
33
beixiaoheone
0.726
1752.27
34
beixiaohetwo
1.477
15180.3
35
liangmaheone
0.726
5861.27
36
liangmahetwo
3.075
6590.75
37
bahe
4.552
9218.41
38
wenyuhesix
17.281
3141.04
39
zhongxiaohe
2.66
45133.8
40
wenyuheseven
19.941
726.815
The other information and data which input GREAT-ER model at the catchment building module
can be calculated by model itself.
3. Information regarding the main STPs in the Wenyu River catchment
Table S2
Main STPs in the Wenyu River catchment in Beijing.
Number of
No.
STP name
Longitude
Latitude
POP
DWF1
Type2
connected rivers
1
Nankou STP
116.15
40.22
46884
8200
AS
7
2
Changping STP
116.26
40.18
156089
27300
AS
11
3
Shangzhuang STP
116.22
40.13
9148
1600
TF
8
4
Xiaotangshan
116.42
40.16
34305
6000
AS
24
STP
5
Beiqingjia STP
116.46
40.11
4574
800
AS
26
6
Beiyuan STP
116.43
40.06
234420
41000
AS
30
7
Qinghe STP
116.34
40.03
2572899
45000
AS
29
0
8
Beixiaohe STP
116.41
40.01
371069
64900
AS
34
9
Jiuxianqiao STP
116.48
39.96
1160663
20300
AS
36
0
10
Jichang STP
116.55
40.06
57176
10000
AS
32
11
Xiaojiahe STP
116.29
40.02
114351
20000
AS
28
1. DWF: Daily wastewater flow (m3/day)
2. Type: STP treatment process. AS (activated sludge), Primary (primary treatment), TF (trickling filter)
Data source: China's sewage treatment engineering network, http://www.dowater.com/
4. The information of the nonylphenol
Nonylphenol in this paper apply to a lot of isomeric compounds of the general formula
C6H4(OH)C9H19. Two ways can be considered about nonylphenol isomers, and one is the substitution
position of the nonyl group on the phenol molecule, the other is the degree of branching of the nonyl
group.
Table S3 Physical ,chemical properties and other information of nonylphenol
Property
Value
CAS number
25154-52-3
EINCES number
284-325-5
Molecular weight
220.34g/mol
Partition coefficient
log Kow 4.48
Water solubility
4.9 mg/l at 20ºC
Vapour Pressure
circa 0.3 Pa at 25ºC
Table S4 Main input parameters used for NP and NPEOs simulation, some other parameters can be
default in the GREAT-ER model
Name:
SUB1
SUB2
substance:
NP
NPEOs
catchment:
Wenyu River
Wenyu River
Name:
NP
NPEOs
CAS：
25154-52-3
27176-95-0
Section 1 —— create a session
Section 2 —— substance data
(1)indentification
Unit
Description
EINCES:
284-325-5
synonym：
C15H24O
C21H36O4
(2) phys.chem.properties
molar Mass:
220.34
352.52 g/mol
Kow:
30199
15849 -
Koc
245470
74131 cm3/g
4.9
5.88 mg/L
water solubility
The molar mass of
NPEO3 instead of
NPEOs to simulate in
this case
(3)partitioning
Kd River
24547.9
7413.1 L/kg[dwt]
Kd sewage
671
480 L/kg[dwt]
Kd mixed liquor
224
160 L/kg[dwt]
0.839
4.03E-06 Pa m3/mol
Herry coef:
(4)WWTP removel
Fraction removal[primary]
0%
0% -
Fraction removal[AS]
97.10%
87.20% -
Fraction removal[TF]
98.40%
90.20% -
(5)River removal
K[instream]:
0.0034–0.0115
0.0096-0.0154
1/h
5.73×10-4
4.24×10-3
kg/(cap a)
(6)Emission data
domestic consumption
(7)risk assessment
PNEC(river)
0.33 NA
mg/L
These parameters
were the output of
European Union
System for the
Evaluation of
Substances(EUSES)
model
Section 3 —— emission data
site specific consumption
——
——
kg/cap a
Additional nondomestic input
——
——
kg/a
Additional runoff input:
NA
NA
kg/a
population
——
——
cap
domestic flow
——
——
L/cap d
Section 4 —— discharge Data
Section 5 —— model parameters
offset conc. Value
NA
monte carlo shots
NA
2000
mg/L
No offset
concentration can be
considered in this
paper
2000
Table. S5. Emissions of NP and NPEOs of the 11 STPs in the Wenyu River catchment of Beijing.
No.
STP name
NP(kg/y)
NPEOs(kg/y)
1
Nankou STP
26.87±7.58
198.86±22.12
2
Changping STP
89.47±25.25
662.04±73.66
3
Shangzhuang STP
5.24±1.48
38.80±4.32
4
Xiaotangshan STP
19.66±5.55
145.50±16.19
5
Beiqingjia STP
2.62±0.74
19.40±2.16
6
Beiyuan STP
134.37±37.92
994.28±110.62
7
Qinghe STP
1474.78±416.19
10912.77±1214.14
8
Beixiaohe STP
212.70±60.02
1573.86±175.11
9
Jiuxianqiao STP
665.29±187.75
4922.87±547.71
10
Jichang STP
32.77±9.25
242.51±26.98
11
Xiaojiahe STP
65.55±18.50
485.01±53.96