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Environmental Protection Interactive Centre

Recent E. coli Levels in Victoria Harbour from Central/Wan Chai to Siu Sai Wan

marinequalrecmap


Recent monthly E. coli levels (cfu/100mL) at the five marine monitoring stations in Victoria Harbour (Surface - 1m below sea surface, Middle - mid-depth, Bottom - 1m above sea bed)

Sampling Date (MM/YYYY) Depth VM5 VM4 VM2 VM1 EM1
1 01/2012 Surface 87000 18000 300 210 7
2 Middle 28000 10000 370 260 90
3 Bottom 6800 28000 360 190 50
4 Depth-averaged 25492 17145 342 218 32
5 02/2012 Surface 59000 650 90 190 <1
6 Middle 31000 4800 720 7 <1
7 Bottom 11000 4600 150 11 1
8 Depth-averaged 27198 2430 213 24 1
9 03/2012 Surface 580 980 290 440 26
10 Middle 700 2000 280 290 79
11 Bottom 670 2300 220 190 16
12 Depth-averaged 648 1652 261 289 32
13 04/2012 Surface 510 2000 140 200 9
14 Middle 5000 8300 83 33 60
15 Bottom 4100 14000 34 21 29
16 Depth-averaged 2187 6148 73 52 25
17 05/2012 Surface 190 980 2200 740 800
18 Middle 620 6400 3200 1000 650
19 Bottom 3100 1200 3600 3700 45
20 Depth-averaged 715 1960 2937 1399 286
21 06/2012 Surface 4800 14000 2300 90 100
22 Middle 4900 610 9200 140 110
23 Bottom 4400 1200 8100 150 110
24 Depth-averaged 4695 2172 5555 124 107
25 07/2012 Surface 1400 5500 2500 1800 120
26 Middle 2100 3800 660 170 75
27 Bottom 2800 2000 5800 110 95
28 Depth-averaged 2019 3471 2123 323 95
29 08/2012 Surface 270 400 6000 1400 38
30 Middle 1200 6200 9700 810 74
31 Bottom 950 3300 3400 92 9
32 Depth-averaged 675 2015 5827 471 29
33 09/2012 Surface 2800 2900 6400 120 41
34 Middle 7700 2500 7400 190 80
35 Bottom 15000 2400 3600 250 170
36 Depth-averaged 6864 2591 5545 179 82
37 10/2012 Surface 3600 590 90 300 200
38 Middle 6200 1700 230 260 190
39 Bottom 23000 2000 190 240 48
40 Depth-averaged 8007 1261 158 266 122
41 11/2012 Surface 150000 620 310 330 160
42 Middle 82000 2000 460 290 110
43 Bottom 29000 3400 710 140 69
44 Depth-averaged 70920 1615 466 238 107
45 12/2012 Surface 82000 15000 610 1100 550
46 Middle 27000 9700 650 760 650
47 Bottom 8700 10000 650 620 460
48 Depth-averaged 26806 11332 636 803 548
49 01/2013 Surface 38000 330 290 230 26
50 Middle 15000 750 230 290 16
51 Bottom 2500 1800 240 200 65
52 Depth-averaged 11253 764 252 237 30
53 02/2013 Surface 1600 1700 240 440 89
54 Middle 1200 2200 90 250 87
55 Bottom 1800 5300 200 310 74
56 Depth-averaged 1512 2706 163 324 83
57 03/2013 Surface 90000 2400 400 340 3
58 Middle 100000 5000 240 240 6
59 Bottom 40000 8400 510 73 3
60 Depth-averaged 71138 4654 366 181 4
61 04/2013 Surface 40000 3100 9100 440 25
62 Middle 3100 10000 660 90 10
63 Bottom 2000 9800 370 30 24
64 Depth-averaged 6283 6722 1305 106 18
65 05/2013 Surface 1600 1000 3900 4100 51
66 Middle 2800 2200 6700 1600 150
67 Bottom 7500 8000 2700 4200 52
68 Depth-averaged 3227 2601 4132 3020 74
69 06/2013 Surface 2800 330 2500 1200 2300
70 Middle 2300 10000 4700 1400 140
71 Bottom 7800 4700 6000 8200 11
72 Depth-averaged 3690 2494 4131 2397 152
73 07/2013 Surface 25 620 1200 160 190
74 Middle 2700 45000 20000 800 1900
75 Bottom 14000 3200 22000 120 100
76 Depth-averaged 981 4469 8082 249 330
77 08/2013 Surface 73000 52 57 84 94
78 Middle 6500 10000 270 220 240
79 Bottom 80000 24000 190 240 840
80 Depth-averaged 33608 2320 143 164 267
81 09/2013 Surface 200000 2200 110 69 32
82 Middle 1700 4500 160 200 12
83 Bottom 2800 5400 170 160 10
84 Depth-averaged 9837 3767 144 130 16
85 10/2013 Surface 270000 1000 800 510 290
86 Middle 6300 5500 510 200 220
87 Bottom 6900 6200 380 160 210
88 Depth-averaged 22726 3243 537 254 238
89 11/2013 Surface 5000 4700 600 570 170
90 Middle 3200 4600 600 400 180
91 Bottom 6200 3000 810 600 73
92 Depth-averaged 4629 4018 663 515 131
93 12/2013 Surface 38000 480 160 470 91
94 Middle 8600 1700 390 340 74
95 Bottom 800 1800 340 260 96
96 Depth-averaged 6394 1137 277 346 86
97 01/2014 Surface 120000 2800 260 190 120
98 Middle 13000 2100 310 80 64
99 Bottom 3300 2100 400 290 30
100 Depth-averaged 17267 2311 318 164 61
101 02/2014 Surface 72000 660 4100 230 15
102 Middle 4100 880 8800 480 11
103 Bottom 5100 1100 9500 350 7
104 Depth-averaged 11461 861 6998 338 10
105 03/2014 Surface 120000 24000 340 50 270
106 Middle 24000 12000 300 140 150
107 Bottom 9000 25000 320 230 35
108 Depth-averaged 29595 19310 320 117 112
109 04/2014 Surface 1800 3000 620 1800 <1
110 Middle 1100 4400 450 630 2
111 Bottom 14000 5500 490 570 2
112 Depth-averaged 3026 4172 515 865 2
113 05/2014 Surface 2300 16000 5900 4100 7200
114 Middle 820 7400 23000 160 1700
115 Bottom 640 3500 2700 330 710
116 Depth-averaged 1065 7455 7156 600 2056
117 06/2014 Surface 4300 1600 2000 1100 15
118 Middle 1800 2400 2400 1100 190
119 Bottom 5800 22000 4800 130 170
120 Depth-averaged 3554 4388 2846 540 79
121 07/2014 Surface 800 290 590 260 15
122 Middle 5300 1000 3500 3500 550
123 Bottom 420000 3600 29000 1500 130
124 Depth-averaged 12121 1014 3912 1109 102
125 08/2014 Surface 300 1000 5900 9300 80
126 Middle 2300 9000 4200 10000 90
127 Bottom 2100 7300 11000 9900 34
128 Depth-averaged 1132 4035 6484 9728 63
129 09/2014 Surface 590 3800 1200 170 4300
130 Middle 130000 2200 1000 900 3400
131 Bottom 15000 2600 3800 90 4200
132 Depth-averaged 10478 2791 1658 240 3945
133 10/2014 Surface 15000 3300 15000 170 420
134 Middle 16000 3400 9500 150 900
135 Bottom 17000 2500 3300 410 23
136 Depth-averaged 15979 3038 7776 219 206
137 11/2014 Surface 1300 22000 4800 350 200
138 Middle 3800 13000 11000 600 170
139 Bottom 5700 1400 12000 370 110
140 Depth-averaged 3042 7371 8589 427 155
141 12/2014 Surface 7100 2800 8800 1000 21
142 Middle 7100 2400 8000 1200 38
143 Bottom 4000 1900 4900 510 27
144 Depth-averaged 5864 2337 7013 849 28
145 01/2015 Surface 6500 1300 570 510 4
146 Middle 2800 2600 600 650 11
147 Bottom 2200 2900 490 530 7
148 Depth-averaged 3421 2140 551 560 7
149 02/2015 Surface 38000 6300 330 260 43
150 Middle 34000 8600 420 330 51
151 Bottom 42000 7500 320 330 46
152 Depth-averaged 37859 7407 354 305 47
153 03/2015 Surface 5700 1900 280 300 58
154 Middle 7800 1400 320 240 44
155 Bottom 9000 1900 290 320 21
156 Depth-averaged 7369 1716 296 285 38
157 04/2015 Surface 52000 5200 320 610 8
158 Middle 48000 7200 330 590 16
159 Bottom 55000 7400 250 250 21
160 Depth-averaged 51586 6519 298 448 14
161 05/2015 Surface 2100 150 5700 650 12
162 Middle 2400 19000 6700 180 120
163 Bottom 2100 16000 670 110 140
164 Depth-averaged 2196 3573 2947 234 59
165 06/2015 Surface 680 780 1800 900 100
166 Middle 920 15000 4300 2000 140
167 Bottom 13000 1900 14000 10000 130
168 Depth-averaged 2011 2812 4767 2621 122
169 07/2015 Surface 4900 11000 1000 110 2
170 Middle 5200 800 5600 140 16
171 Bottom 4500 800 8000 80 88
172 Depth-averaged 4858 1917 3552 107 14
173 08/2015 Surface 190 100 360 180 28
174 Middle 360 160 360 270 170
175 Bottom 70000 700 140 130 50
176 Depth-averaged 1685 224 263 185 62
177 09/2015 Surface 5100 1600 340 310 240
178 Middle 900 1600 160 520 240
179 Bottom 2300 2300 70 100 83
180 Depth-averaged 2194 1806 156 253 168
181 10/2015 Surface 60 180 90 87 7
182 Middle 70 210 98 130 18
183 Bottom 120 130 93 87 7
184 Depth-averaged 80 170 94 99 10
185 11/2015 Surface 1600 150 63 250 13
186 Middle 1300 420 400 350 11
187 Bottom 770 600 750 190 2
188 Depth-averaged 1170 336 266 255 7
189 12/2015 Surface 5500 850 140 52 3
190 Middle 2600 840 59 120 3
191 Bottom 760 2300 52 43 7
192 Depth-averaged 2215 1180 75 64 4
193 01/2016 Surface 540 240 790 3800 14
194 Middle 300 250 450 310 13
195 Bottom 370 230 360 200 120
196 Depth-averaged 391 240 504 618 28
197 02/2016 Surface 110 290 120 98 100
198 Middle 70 580 110 96 120
199 Bottom 150 150 83 90 100
200 Depth-averaged 105 293 103 95 106
201 03/2016 Surface 430 1100 110 170 10
202 Middle 650 400 100 150 27
203 Bottom 410 200 110 95 1
204 Depth-averaged 486 445 107 134 6
205 04/2016 Surface 730 210 330 120 66
206 Middle 710 220 90 530 54
207 Bottom 1100 100 50 66 52
208 Depth-averaged 829 167 114 161 57
209 05/2016 Surface 120 150 120 220 420
210 Middle 200 210 290 660 290
211 Bottom 180 220 180 210 100
212 Depth-averaged 163 191 184 312 230
213 06/2016 Surface 1400 800 800 59 140
214 Middle 650 900 480 80 7
215 Bottom 360 350 410 1700 29
216 Depth-averaged 689 632 540 200 31
217 07/2016 Surface 180 320 210 1800 220
218 Middle 1100 800 460 830 90
219 Bottom 1000 300 1300 250 61
220 Depth-averaged 583 425 501 720 106
221 08/2016 Surface 630 1400 470 300 600
222 Middle 520 520 520 130 76
223 Bottom 1000 200 420 180 17
224 Depth-averaged 689 526 468 191 92
225 09/2016 Surface 2400 930 120 53 83
226 Middle 1100 770 150 190 50
227 Bottom 750 590 150 200 76
228 Depth-averaged 1256 750 139 126 68
229 10/2016 Surface 2000 8000 80 200 140
230 Middle 1800 10000 80 85 80
231 Bottom 1400 650 250 90 29
232 Depth-averaged 1715 3733 117 115 69
233 11/2016 Surface 190 540 170 120 390
234 Middle 180 810 210 200 430
235 Bottom 220 4200 120 250 120
236 Depth-averaged 196 1225 162 182 272
237 12/2016 Surface 300 60 370 180 30
238 Middle 240 100 350 100 100
239 Bottom 250 210 290 130 55
240 Depth-averaged 262 108 335 133 55
241 01/2017 Surface 800 210 260 120 9
242 Middle 650 190 350 80 18
243 Bottom 1400 170 400 52 50
244 Depth-averaged 900 189 331 79 20
245 02/2017 Surface 260 100 120 95 86
246 Middle 320 200 100 80 120
247 Bottom 180 240 98 81 59
248 Depth-averaged 246 169 106 85 85
249 03/2017 Surface 10 50 11 8 11
250 Middle 10 90 11 88 13
251 Bottom 10 30 17 72 2
252 Depth-averaged 10 51 13 37 7
253 04/2017 Surface 230 560 330 59 4
254 Middle 430 330 250 65 2
255 Bottom 680 250 230 32 5
256 Depth-averaged 407 359 267 50 3
257 05/2017 Surface 1100 390 280 160 3
258 Middle 1400 220 300 93 37
259 Bottom 800 130 240 27 40
260 Depth-averaged 1072 223 272 74 16
261 06/2017 Surface 20 10 320 390 51
262 Middle 430 40 71 210 50
263 Bottom 280 40 68 65 32
264 Depth-averaged 134 25 116 175 43
265 07/2017 Surface 70 30 570 150 890
266 Middle 410 250 230 170 51
267 Bottom 80 90 23 16 19
268 Depth-averaged 132 88 144 74 95
269 08/2017 Surface 490 1400 830 270 6800
270 Middle 1900 1700 460 42 120
271 Bottom 1400 490 91 13 44
272 Depth-averaged 1092 1053 326 53 330
273 09/2017 Surface 220 550 560 80 15
274 Middle 1000 50 100 84 55
275 Bottom 60 20 44 15 9
276 Depth-averaged 236 82 135 47 20
277 10/2017 Surface 420 70 80 230 42
278 Middle 490 120 70 77 32
279 Bottom 340 120 130 52 10
280 Depth-averaged 412 100 90 97 24
281 11/2017 Surface 1200 90 110 220 130
282 Middle 1000 560 170 220 80
283 Bottom 2000 370 90 100 68
284 Depth-averaged 1339 265 119 169 89
285 12/2017 Surface 1000 400 170 200 3
286 Middle 950 510 210 110 1
287 Bottom 1500 440 190 250 4
288 Depth-averaged 1125 448 189 177 2
289 01/2018 Surface 800 450 650 400 2
290 Middle 960 500 430 410 3
291 Bottom 740 560 730 170 12
292 Depth-averaged 828 501 589 303 4
293 02/2018 Surface 310 170 170 240 12
294 Middle 200 160 280 430 19
295 Bottom 550 290 190 410 2
296 Depth-averaged 324 199 208 348 8
297 03/2018 Surface 190 270 100 70 16
298 Middle 350 260 120 340 47
299 Bottom 260 230 140 97 50
300 Depth-averaged 259 253 119 132 34
301 04/2018 Surface 10 30 51 19 69
302 Middle 10 <10 27 4 45
303 Bottom 30 30 9 2 16
304 Depth-averaged 14 21 23 5 37
305 05/2018 Surface 2100 110 21 68 80
306 Middle 1300 240 38 32 38
307 Bottom 130 320 38 30 21
308 Depth-averaged 708 204 31 40 40
309 06/2018 Surface 2300 600 900 230 1800
310 Middle 1200 2000 1400 110 160
311 Bottom 1700 380 730 78 140
312 Depth-averaged 1674 770 973 125 343
313 07/2018 Surface 3300 4000 2100 220 150
314 Middle 2800 570 280 55 110
315 Bottom 620 240 19 8 14
316 Depth-averaged 1789 818 224 46 61
317 08/2018 Surface 5700 2600 550 390 120
318 Middle 7300 10000 2700 140 100
319 Bottom 3600 550 1400 85 43
320 Depth-averaged 5311 2427 1276 167 80
321 09/2018 Surface 730 580 810 370 280
322 Middle 1800 1500 390 56 190
323 Bottom 1300 600 220 36 90
324 Depth-averaged 1195 805 411 91 169
325 10/2018 Surface 170 260 140 150 130
326 Middle 130 290 130 160 61
327 Bottom 180 160 150 120 36
328 Depth-averaged 158 229 140 142 66
329 11/2018 Surface 80 170 160 140 14
330 Middle 30 140 190 250 33
331 Bottom 180 140 140 91 15
332 Depth-averaged 76 149 162 147 19
333 12/2018 Surface 130 1200 150 140 90
334 Middle 150 730 440 400 320
335 Bottom 130 490 890 170 130
336 Depth-averaged 136 754 389 212 155
337 01/2019 Surface 380 280 170 150 <1
338 Middle 320 340 270 470 1
339 Bottom 280 250 110 260 <1
340 Depth-averaged 324 288 172 264 1
341 02/2019 Surface 150 230 370 410 17
342 Middle 160 260 320 430 33
343 Bottom 230 220 360 250 40
344 Depth-averaged 177 236 349 353 28
345 03/2019 Surface 140 190 270 42 150
346 Middle 80 150 190 46 42
347 Bottom 180 180 50 45 19
348 Depth-averaged 126 172 137 44 49
349 04/2019 Surface 40 180 190 65 46
350 Middle 90 90 66 56 35
351 Bottom 100 140 14 9 160
352 Depth-averaged 71 131 56 32 64
353 05/2019 Surface 330 380 600 270 100
354 Middle 760 630 460 90 90
355 Bottom 620 700 380 90 74
356 Depth-averaged 538 551 472 130 87
357 06/2019 Surface 270 470 710 170 160
358 Middle 2900 620 520 90 170
359 Bottom 870 870 230 80 80
360 Depth-averaged 880 633 440 107 130
361 07/2019 Surface 820 860 1200 260 370
362 Middle 900 1400 550 170 170
363 Bottom 190 380 80 43 46
364 Depth-averaged 520 771 375 124 142
365 08/2019 Surface 140 670 190 280 90
366 Middle 700 570 640 200 310
367 Bottom 800 490 470 72 410
368 Depth-averaged 428 572 385 159 225
369 09/2019 Surface 200 60 330 560 190
370 Middle 260 950 420 160 140
371 Bottom 420 450 310 170 150
372 Depth-averaged 280 295 350 248 159
373 10/2019 Surface 530 1000 150 100 4
374 Middle 620 2700 170 210 9
375 Bottom 480 1200 130 210 <1
376 Depth-averaged 540 1480 149 164 3
377 11/2019 Surface 120 280 120 130 10
378 Middle 190 270 260 460 29
379 Bottom 170 420 220 680 71
380 Depth-averaged 157 317 190 344 27
381 12/2019 Surface 180 390 300 250 69
382 Middle 860 470 400 120 85
383 Bottom 440 800 290 120 110
384 Depth-averaged 408 527 326 153 86
385 01/2020 Surface 480 330 280 110 3
386 Middle 620 390 270 100 7
387 Bottom 450 280 340 94 12
388 Depth-averaged 512 330 295 101 6
389 02/2020 Surface 9300
390 Middle 4500
391 Bottom 4000
392 Depth-averaged 5511
393 03/2020 Surface 260 800 170 90 60
394 Middle 480 830 130 100 150
395 Bottom 460 750 160 93 49
396 Depth-averaged 386 793 152 94 76
397 04/2020 Surface 430 220 400 50 29
398 Middle 370 200 310 140 33
399 Bottom 220 150 340 90 23
400 Depth-averaged 327 188 348 86 28
401 05/2020 Surface 250 500 520 140 <1
402 Middle 320 540 450 62 25
403 Bottom 380 420 150 34 10
404 Depth-averaged 312 484 327 67 6
405 06/2020 Surface 850 1200 1700 7800 90
406 Middle 830 1700 1900 1100 110
407 Bottom 1400 750 1200 500 71
408 Depth-averaged 996 1152 1571 1625 89
409 07/2020 Surface 100 90 290 50 4
410 Middle 6700 500 190 240 33
411 Bottom 2800 210 340 240 17
412 Depth-averaged 1233 211 266 142 13
413 08/2020 Surface 180 60 390 99 46
414 Middle 480 320 370 130 62
415 Bottom 370 190 190 28 59
416 Depth-averaged 317 154 302 71 55
417 09/2020 Surface 820 1000 270 520 200
418 Middle 1400 670 320 300 120
419 Bottom 470 930 390 140 110
420 Depth-averaged 814 854 323 280 138
421 10/2020 Surface 510 370 70 3400 34
422 Middle 580 640 120 650 80
423 Bottom 900 720 340 900 34
424 Depth-averaged 643 555 142 1258 45
425 11/2020 Surface 50 20 46 78 14
426 Middle 90 20 55 33 51
427 Bottom 110 50 81 56 36
428 Depth-averaged 79 27 59 52 30
429 12/2020 Surface 120 190 120 49
430 Middle 110 60 93 44
431 Bottom 90 80 80 61
432 Depth-averaged 106 97 96 51
433 01/2021 Surface 190 90
434 Middle 190 70
435 Bottom 250 190
436 Depth-averaged 208 106
437 02/2021 Surface 120 20 78 3 16
438 Middle 120 10 49 15 17
439 Bottom 100 80 82 11 33
440 Depth-averaged 113 25 68 8 21
441 03/2021 Surface 60 70 70 40 67
442 Middle 100 70 110 10 58
443 Bottom 110 40 82 88 59
444 Depth-averaged 87 58 86 33 61