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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 01/2011 Surface 43000 3500 1500 480 500
2 Middle 22000 4400 1300 140 430
3 Bottom 4600 4300 750 40 280
4 Depth-averaged 16326 4046 1135 139 392
5 02/2011 Surface 990 3800 9 270 2
6 Middle 2300 3600 130 240 3
7 Bottom 2000 5300 190 230 6
8 Depth-averaged 1658 4170 61 246 3
9 03/2011 Surface 430 640 8000 270 22
10 Middle 1100 820 19000 30 39
11 Bottom 1700 500 5900 9 150
12 Depth-averaged 930 640 9643 42 50
13 04/2011 Surface 1200 900 68 190 <1
14 Middle 4400 2500 90 160 2
15 Bottom 9100 3800 75 150 <1
16 Depth-averaged 3635 2045 77 166 1
17 05/2011 Surface 210 2500 12000 220 120
18 Middle 9000 1900 9000 90 170
19 Bottom 620 50000 12000 9 7
20 Depth-averaged 1054 6193 10903 56 52
21 06/2011 Surface 450 270 40 8 1700
22 Middle 2300 2200 290 8 2400
23 Bottom 4900 31000 19 5 590
24 Depth-averaged 1718 2641 60 7 1340
25 07/2011 Surface 210 290 540 64 120
26 Middle 2000 800 810 310 240
27 Bottom 4600 41000 490 80 160
28 Depth-averaged 1245 2119 598 117 166
29 08/2011 Surface 1400 140 100 110 80
30 Middle 5800 8200 40 110 540
31 Bottom 6100 5600 180 80 300
32 Depth-averaged 3673 1859 90 99 235
33 09/2011 Surface 19000 910 180 320 9
34 Middle 1200 5000 210 100 7
35 Bottom 2000 5300 190 110 24
36 Depth-averaged 3573 2889 193 152 11
37 10/2011 Surface 2700 2100 17000 1200 64
38 Middle 2900 2000 13000 600 49
39 Bottom 6500 1200 850 80 13
40 Depth-averaged 3706 1715 5727 386 34
41 11/2011 Surface 71000 6900 450 450 64
42 Middle 17000 7200 820 420 50
43 Bottom 23000 3400 900 290 23
44 Depth-averaged 30279 5528 693 380 42
45 12/2011 Surface 26000 900 15000 460 <1
46 Middle 44000 1600 11000 280 1
47 Bottom 7900 2100 8700 630 3
48 Depth-averaged 20830 1446 11281 433 1
49 01/2012 Surface 87000 18000 300 210 7
50 Middle 28000 10000 370 260 90
51 Bottom 6800 28000 360 190 50
52 Depth-averaged 25492 17145 342 218 32
53 02/2012 Surface 59000 650 90 190 <1
54 Middle 31000 4800 720 7 <1
55 Bottom 11000 4600 150 11 1
56 Depth-averaged 27198 2430 213 24 1
57 03/2012 Surface 580 980 290 440 26
58 Middle 700 2000 280 290 79
59 Bottom 670 2300 220 190 16
60 Depth-averaged 648 1652 261 289 32
61 04/2012 Surface 510 2000 140 200 9
62 Middle 5000 8300 83 33 60
63 Bottom 4100 14000 34 21 29
64 Depth-averaged 2187 6148 73 52 25
65 05/2012 Surface 190 980 2200 740 800
66 Middle 620 6400 3200 1000 650
67 Bottom 3100 1200 3600 3700 45
68 Depth-averaged 715 1960 2937 1399 286
69 06/2012 Surface 4800 14000 2300 90 100
70 Middle 4900 610 9200 140 110
71 Bottom 4400 1200 8100 150 110
72 Depth-averaged 4695 2172 5555 124 107
73 07/2012 Surface 1400 5500 2500 1800 120
74 Middle 2100 3800 660 170 75
75 Bottom 2800 2000 5800 110 95
76 Depth-averaged 2019 3471 2123 323 95
77 08/2012 Surface 270 400 6000 1400 38
78 Middle 1200 6200 9700 810 74
79 Bottom 950 3300 3400 92 9
80 Depth-averaged 675 2015 5827 471 29
81 09/2012 Surface 2800 2900 6400 120 41
82 Middle 7700 2500 7400 190 80
83 Bottom 15000 2400 3600 250 170
84 Depth-averaged 6864 2591 5545 179 82
85 10/2012 Surface 3600 590 90 300 200
86 Middle 6200 1700 230 260 190
87 Bottom 23000 2000 190 240 48
88 Depth-averaged 8007 1261 158 266 122
89 11/2012 Surface 150000 620 310 330 160
90 Middle 82000 2000 460 290 110
91 Bottom 29000 3400 710 140 69
92 Depth-averaged 70920 1615 466 238 107
93 12/2012 Surface 82000 15000 610 1100 550
94 Middle 27000 9700 650 760 650
95 Bottom 8700 10000 650 620 460
96 Depth-averaged 26806 11332 636 803 548
97 01/2013 Surface 38000 330 290 230 26
98 Middle 15000 750 230 290 16
99 Bottom 2500 1800 240 200 65
100 Depth-averaged 11253 764 252 237 30
101 02/2013 Surface 1600 1700 240 440 89
102 Middle 1200 2200 90 250 87
103 Bottom 1800 5300 200 310 74
104 Depth-averaged 1512 2706 163 324 83
105 03/2013 Surface 90000 2400 400 340 3
106 Middle 100000 5000 240 240 6
107 Bottom 40000 8400 510 73 3
108 Depth-averaged 71138 4654 366 181 4
109 04/2013 Surface 40000 3100 9100 440 25
110 Middle 3100 10000 660 90 10
111 Bottom 2000 9800 370 30 24
112 Depth-averaged 6283 6722 1305 106 18
113 05/2013 Surface 1600 1000 3900 4100 51
114 Middle 2800 2200 6700 1600 150
115 Bottom 7500 8000 2700 4200 52
116 Depth-averaged 3227 2601 4132 3020 74
117 06/2013 Surface 2800 330 2500 1200 2300
118 Middle 2300 10000 4700 1400 140
119 Bottom 7800 4700 6000 8200 11
120 Depth-averaged 3690 2494 4131 2397 152
121 07/2013 Surface 25 620 1200 160 190
122 Middle 2700 45000 20000 800 1900
123 Bottom 14000 3200 22000 120 100
124 Depth-averaged 981 4469 8082 249 330
125 08/2013 Surface 73000 52 57 84 94
126 Middle 6500 10000 270 220 240
127 Bottom 80000 24000 190 240 840
128 Depth-averaged 33608 2320 143 164 267
129 09/2013 Surface 200000 2200 110 69 32
130 Middle 1700 4500 160 200 12
131 Bottom 2800 5400 170 160 10
132 Depth-averaged 9837 3767 144 130 16
133 10/2013 Surface 270000 1000 800 510 290
134 Middle 6300 5500 510 200 220
135 Bottom 6900 6200 380 160 210
136 Depth-averaged 22726 3243 537 254 238
137 11/2013 Surface 5000 4700 600 570 170
138 Middle 3200 4600 600 400 180
139 Bottom 6200 3000 810 600 73
140 Depth-averaged 4629 4018 663 515 131
141 12/2013 Surface 38000 480 160 470 91
142 Middle 8600 1700 390 340 74
143 Bottom 800 1800 340 260 96
144 Depth-averaged 6394 1137 277 346 86
145 01/2014 Surface 120000 2800 260 190 120
146 Middle 13000 2100 310 80 64
147 Bottom 3300 2100 400 290 30
148 Depth-averaged 17267 2311 318 164 61
149 02/2014 Surface 72000 660 4100 230 15
150 Middle 4100 880 8800 480 11
151 Bottom 5100 1100 9500 350 7
152 Depth-averaged 11461 861 6998 338 10
153 03/2014 Surface 120000 24000 340 50 270
154 Middle 24000 12000 300 140 150
155 Bottom 9000 25000 320 230 35
156 Depth-averaged 29595 19310 320 117 112
157 04/2014 Surface 1800 3000 620 1800 <1
158 Middle 1100 4400 450 630 2
159 Bottom 14000 5500 490 570 2
160 Depth-averaged 3026 4172 515 865 2
161 05/2014 Surface 2300 16000 5900 4100 7200
162 Middle 820 7400 23000 160 1700
163 Bottom 640 3500 2700 330 710
164 Depth-averaged 1065 7455 7156 600 2056
165 06/2014 Surface 4300 1600 2000 1100 15
166 Middle 1800 2400 2400 1100 190
167 Bottom 5800 22000 4800 130 170
168 Depth-averaged 3554 4388 2846 540 79
169 07/2014 Surface 800 290 590 260 15
170 Middle 5300 1000 3500 3500 550
171 Bottom 420000 3600 29000 1500 130
172 Depth-averaged 12121 1014 3912 1109 102
173 08/2014 Surface 300 1000 5900 9300 80
174 Middle 2300 9000 4200 10000 90
175 Bottom 2100 7300 11000 9900 34
176 Depth-averaged 1132 4035 6484 9728 63
177 09/2014 Surface 590 3800 1200 170 4300
178 Middle 130000 2200 1000 900 3400
179 Bottom 15000 2600 3800 90 4200
180 Depth-averaged 10478 2791 1658 240 3945
181 10/2014 Surface 15000 3300 15000 170 420
182 Middle 16000 3400 9500 150 900
183 Bottom 17000 2500 3300 410 23
184 Depth-averaged 15979 3038 7776 219 206
185 11/2014 Surface 1300 22000 4800 350 200
186 Middle 3800 13000 11000 600 170
187 Bottom 5700 1400 12000 370 110
188 Depth-averaged 3042 7371 8589 427 155
189 12/2014 Surface 7100 2800 8800 1000 21
190 Middle 7100 2400 8000 1200 38
191 Bottom 4000 1900 4900 510 27
192 Depth-averaged 5864 2337 7013 849 28
193 01/2015 Surface 6500 1300 570 510 4
194 Middle 2800 2600 600 650 11
195 Bottom 2200 2900 490 530 7
196 Depth-averaged 3421 2140 551 560 7
197 02/2015 Surface 38000 6300 330 260 43
198 Middle 34000 8600 420 330 51
199 Bottom 42000 7500 320 330 46
200 Depth-averaged 37859 7407 354 305 47
201 03/2015 Surface 5700 1900 280 300 58
202 Middle 7800 1400 320 240 44
203 Bottom 9000 1900 290 320 21
204 Depth-averaged 7369 1716 296 285 38
205 04/2015 Surface 52000 5200 320 610 8
206 Middle 48000 7200 330 590 16
207 Bottom 55000 7400 250 250 21
208 Depth-averaged 51586 6519 298 448 14
209 05/2015 Surface 2100 150 5700 650 12
210 Middle 2400 19000 6700 180 120
211 Bottom 2100 16000 670 110 140
212 Depth-averaged 2196 3573 2947 234 59
213 06/2015 Surface 680 780 1800 900 100
214 Middle 920 15000 4300 2000 140
215 Bottom 13000 1900 14000 10000 130
216 Depth-averaged 2011 2812 4767 2621 122
217 07/2015 Surface 4900 11000 1000 110 2
218 Middle 5200 800 5600 140 16
219 Bottom 4500 800 8000 80 88
220 Depth-averaged 4858 1917 3552 107 14
221 08/2015 Surface 190 100 360 180 28
222 Middle 360 160 360 270 170
223 Bottom 70000 700 140 130 50
224 Depth-averaged 1685 224 263 185 62
225 09/2015 Surface 5100 1600 340 310 240
226 Middle 900 1600 160 520 240
227 Bottom 2300 2300 70 100 83
228 Depth-averaged 2194 1806 156 253 168
229 10/2015 Surface 60 180 90 87 7
230 Middle 70 210 98 130 18
231 Bottom 120 130 93 87 7
232 Depth-averaged 80 170 94 99 10
233 11/2015 Surface 1600 150 63 250 13
234 Middle 1300 420 400 350 11
235 Bottom 770 600 750 190 2
236 Depth-averaged 1170 336 266 255 7
237 12/2015 Surface 5500 850 140 52 3
238 Middle 2600 840 59 120 3
239 Bottom 760 2300 52 43 7
240 Depth-averaged 2215 1180 75 64 4
241 01/2016 Surface 540 240 790 3800 14
242 Middle 300 250 450 310 13
243 Bottom 370 230 360 200 120
244 Depth-averaged 391 240 504 618 28
245 02/2016 Surface 110 290 120 98 100
246 Middle 70 580 110 96 120
247 Bottom 150 150 83 90 100
248 Depth-averaged 105 293 103 95 106
249 03/2016 Surface 430 1100 110 170 10
250 Middle 650 400 100 150 27
251 Bottom 410 200 110 95 1
252 Depth-averaged 486 445 107 134 6
253 04/2016 Surface 730 210 330 120 66
254 Middle 710 220 90 530 54
255 Bottom 1100 100 50 66 52
256 Depth-averaged 829 167 114 161 57
257 05/2016 Surface 120 150 120 220 420
258 Middle 200 210 290 660 290
259 Bottom 180 220 180 210 100
260 Depth-averaged 163 191 184 312 230
261 06/2016 Surface 1400 800 800 59 140
262 Middle 650 900 480 80 7
263 Bottom 360 350 410 1700 29
264 Depth-averaged 689 632 540 200 31
265 07/2016 Surface 180 320 210 1800 220
266 Middle 1100 800 460 830 90
267 Bottom 1000 300 1300 250 61
268 Depth-averaged 583 425 501 720 106
269 08/2016 Surface 630 1400 470 300 600
270 Middle 520 520 520 130 76
271 Bottom 1000 200 420 180 17
272 Depth-averaged 689 526 468 191 92
273 09/2016 Surface 2400 930 120 53 83
274 Middle 1100 770 150 190 50
275 Bottom 750 590 150 200 76
276 Depth-averaged 1256 750 139 126 68
277 10/2016 Surface 2000 8000 80 200 140
278 Middle 1800 10000 80 85 80
279 Bottom 1400 650 250 90 29
280 Depth-averaged 1715 3733 117 115 69
281 11/2016 Surface 190 540 170 120 390
282 Middle 180 810 210 200 430
283 Bottom 220 4200 120 250 120
284 Depth-averaged 196 1225 162 182 272
285 12/2016 Surface 300 60 370 180 30
286 Middle 240 100 350 100 100
287 Bottom 250 210 290 130 55
288 Depth-averaged 262 108 335 133 55
289 01/2017 Surface 800 210 260 120 9
290 Middle 650 190 350 80 18
291 Bottom 1400 170 400 52 50
292 Depth-averaged 900 189 331 79 20
293 02/2017 Surface 260 100 120 95 86
294 Middle 320 200 100 80 120
295 Bottom 180 240 98 81 59
296 Depth-averaged 246 169 106 85 85
297 03/2017 Surface 10 50 11 8 11
298 Middle 10 90 11 88 13
299 Bottom 10 30 17 72 2
300 Depth-averaged 10 51 13 37 7
301 04/2017 Surface 230 560 330 59 4
302 Middle 430 330 250 65 2
303 Bottom 680 250 230 32 5
304 Depth-averaged 407 359 267 50 3
305 05/2017 Surface 1100 390 280 160 3
306 Middle 1400 220 300 93 37
307 Bottom 800 130 240 27 40
308 Depth-averaged 1072 223 272 74 16
309 06/2017 Surface 20 10 320 390 51
310 Middle 430 40 71 210 50
311 Bottom 280 40 68 65 32
312 Depth-averaged 134 25 116 175 43
313 07/2017 Surface 70 30 570 150 890
314 Middle 410 250 230 170 51
315 Bottom 80 90 23 16 19
316 Depth-averaged 132 88 144 74 95
317 08/2017 Surface 490 1400 830 270 6800
318 Middle 1900 1700 460 42 120
319 Bottom 1400 490 91 13 44
320 Depth-averaged 1092 1053 326 53 330
321 09/2017 Surface 220 550 560 80 15
322 Middle 1000 50 100 84 55
323 Bottom 60 20 44 15 9
324 Depth-averaged 236 82 135 47 20
325 10/2017 Surface 420 70 80 230 42
326 Middle 490 120 70 77 32
327 Bottom 340 120 130 52 10
328 Depth-averaged 412 100 90 97 24
329 11/2017 Surface 1200 90 110 220 130
330 Middle 1000 560 170 220 80
331 Bottom 2000 370 90 100 68
332 Depth-averaged 1339 265 119 169 89
333 12/2017 Surface 1000 400 170 200 3
334 Middle 950 510 210 110 1
335 Bottom 1500 440 190 250 4
336 Depth-averaged 1125 448 189 177 2
337 01/2018 Surface 800 450 650 400 2
338 Middle 960 500 430 410 3
339 Bottom 740 560 730 170 12
340 Depth-averaged 828 501 589 303 4
341 02/2018 Surface 310 170 170 240 12
342 Middle 200 160 280 430 19
343 Bottom 550 290 190 410 2
344 Depth-averaged 324 199 208 348 8
345 03/2018 Surface 190 270 100 70 16
346 Middle 350 260 120 340 47
347 Bottom 260 230 140 97 50
348 Depth-averaged 259 253 119 132 34
349 04/2018 Surface 10 30 51 19 69
350 Middle 10 <10 27 4 45
351 Bottom 30 30 9 2 16
352 Depth-averaged 14 21 23 5 37
353 05/2018 Surface 2100 110 21 68 80
354 Middle 1300 240 38 32 38
355 Bottom 130 320 38 30 21
356 Depth-averaged 708 204 31 40 40
357 06/2018 Surface 2300 600 900 230 1800
358 Middle 1200 2000 1400 110 160
359 Bottom 1700 380 730 78 140
360 Depth-averaged 1674 770 973 125 343
361 07/2018 Surface 3300 4000 2100 220 150
362 Middle 2800 570 280 55 110
363 Bottom 620 240 19 8 14
364 Depth-averaged 1789 818 224 46 61
365 08/2018 Surface 5700 2600 550 390 120
366 Middle 7300 10000 2700 140 100
367 Bottom 3600 550 1400 85 43
368 Depth-averaged 5311 2427 1276 167 80
369 09/2018 Surface 730 580 810 370 280
370 Middle 1800 1500 390 56 190
371 Bottom 1300 600 220 36 90
372 Depth-averaged 1195 805 411 91 169
373 10/2018 Surface 170 260 140 150 130
374 Middle 130 290 130 160 61
375 Bottom 180 160 150 120 36
376 Depth-averaged 158 229 140 142 66
377 11/2018 Surface 80 170 160 140 14
378 Middle 30 140 190 250 33
379 Bottom 180 140 140 91 15
380 Depth-averaged 76 149 162 147 19
381 12/2018 Surface 130 1200 150 140 90
382 Middle 150 730 440 400 320
383 Bottom 130 490 890 170 130
384 Depth-averaged 136 754 389 212 155
385 01/2019 Surface 380 280 170 150 <1
386 Middle 320 340 270 470 1
387 Bottom 280 250 110 260 <1
388 Depth-averaged 324 288 172 264 1
389 02/2019 Surface 150 230 370 410 17
390 Middle 160 260 320 430 33
391 Bottom 230 220 360 250 40
392 Depth-averaged 177 236 349 353 28
393 03/2019 Surface 140 190 270 42 150
394 Middle 80 150 190 46 42
395 Bottom 180 180 50 45 19
396 Depth-averaged 126 172 137 44 49
397 04/2019 Surface 40 180 190 65 46
398 Middle 90 90 66 56 35
399 Bottom 100 140 14 9 160
400 Depth-averaged 71 131 56 32 64
401 05/2019 Surface 330 380 600 270 100
402 Middle 760 630 460 90 90
403 Bottom 620 700 380 90 74
404 Depth-averaged 538 551 472 130 87
405 06/2019 Surface 270 470 710 170 160
406 Middle 2900 620 520 90 170
407 Bottom 870 870 230 80 80
408 Depth-averaged 880 633 440 107 130
409 07/2019 Surface 820 860 1200 260 370
410 Middle 900 1400 550 170 170
411 Bottom 190 380 80 43 46
412 Depth-averaged 520 771 375 124 142
413 08/2019 Surface 140 670 190 280 90
414 Middle 700 570 640 200 310
415 Bottom 800 490 470 72 410
416 Depth-averaged 428 572 385 159 225
417 09/2019 Surface 200 60 330 560 190
418 Middle 260 950 420 160 140
419 Bottom 420 450 310 170 150
420 Depth-averaged 280 295 350 248 159
421 10/2019 Surface 530 1000 150 100 4
422 Middle 620 2700 170 210 9
423 Bottom 480 1200 130 210 <1
424 Depth-averaged 540 1480 149 164 3
425 11/2019 Surface 120 280 120 130 10
426 Middle 190 270 260 460 29
427 Bottom 170 420 220 680 71
428 Depth-averaged 157 317 190 344 27
429 12/2019 Surface 180 390 300 250 69
430 Middle 860 470 400 120 85
431 Bottom 440 800 290 120 110
432 Depth-averaged 408 527 326 153 86
433 01/2020 Surface 480 330 280 110 3
434 Middle 620 390 270 100 7
435 Bottom 450 280 340 94 12
436 Depth-averaged 512 330 295 101 6
437 02/2020 Surface 9300
438 Middle 4500
439 Bottom 4000
440 Depth-averaged 5511
441 03/2020 Surface 260 800 170 90 60
442 Middle 480 830 130 100 150
443 Bottom 460 750 160 93 49
444 Depth-averaged 386 793 152 94 76
445 04/2020 Surface 430 220 400 50 29
446 Middle 370 200 310 140 33
447 Bottom 220 150 340 90 23
448 Depth-averaged 327 188 348 86 28
449 05/2020 Surface 250 500 520 140 <1
450 Middle 320 540 450 62 25
451 Bottom 380 420 150 34 10
452 Depth-averaged 312 484 327 67 6
453 06/2020 Surface 850 1200 1700 7800 90
454 Middle 830 1700 1900 1100 110
455 Bottom 1400 750 1200 500 71
456 Depth-averaged 996 1152 1571 1625 89
457 07/2020 Surface 100 90 290 50 4
458 Middle 6700 500 190 240 33
459 Bottom 2800 210 340 240 17
460 Depth-averaged 1233 211 266 142 13
461 08/2020 Surface 180 60 390 99 46
462 Middle 480 320 370 130 62
463 Bottom 370 190 190 28 59
464 Depth-averaged 317 154 302 71 55
465 09/2020 Surface 820 1000 270 520 200
466 Middle 1400 670 320 300 120
467 Bottom 470 930 390 140 110
468 Depth-averaged 814 854 323 280 138
469 10/2020 Surface 510 370 70 3400 34
470 Middle 580 640 120 650 80
471 Bottom 900 720 340 900 34
472 Depth-averaged 643 555 142 1258 45
473 11/2020 Surface 50 20 46 78 14
474 Middle 90 20 55 33 51
475 Bottom 110 50 81 56 36
476 Depth-averaged 79 27 59 52 30