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sampling point
Brent At Priestley Way, Hendon

Description BRENT AT PRIESTLEY WAY, HENDON
Sampling point ID TH-PBRR0070
Type Freshwater – Rivers
Status open
Location easting northing: 522424 187374
lat lon: 51.571947, -0.234883
Area Hertfordshire And North London
Sub-Area L&W Herts & North London
Summary 261 samples taken between 2024 and 2000

Determinands

Determinands identify a property which can be measured on a sample or the sampling environment, together with the units in which the result of that measurement will be expressed.

27 determinands have been measured at this site
  • 4-nonPhenol
  • Action taken
  • Alky pH 4.5
  • Ammonia(N)
  • B-[a]-pyrene
  • B-[b]-fluora
  • B-[ghi]-pery
  • B-[k]-fluora
  • BOD ATU
  • Chloride Ion
  • Cond @ 25C
  • Fluoranthene
  • Ind123pyrene
  • N Oxidised
  • NH3 un-ion
  • Nitrate-N
  • Nitrite-N
  • O Diss %sat
  • Orthophospht
  • Oxygen Diss
  • SI-GQA
  • Temp Water
  • Triclosan
  • Type of Flow
  • pH
  • pH in-situ
  • ptOctylPheno

Sampling results

Displaying the twenty most recent samples. You can see all 261 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 20 Feb 2024 to 18 Nov 2024

NotationDeterminandUnits20 Feb
2024
12:13
18 Mar
2024
09:57
15 Apr
2024
10:59
14 May
2024
11:32
17 Jun
2024
13:18
15 Jul
2024
10:38
19 Aug
2024
09:54
17 Sep
2024
13:56
16 Oct
2024
10:33
18 Nov
2024
10:15
0061pH8.17.957.977.917.667.697.977.57.877.73
0076Temperature of Water°C9.410.713.514.716.116.718.315.414.410.1
0077Conductivity at 25 Cμs/cm702644418718780905715831781698
0085BOD : 5 Day ATUmg/l< 21.51162.12.83.5< 6< 33.9
0111Ammoniacal Nitrogen as Nmg/l0.130.130.330.60.510.711.110.0351.6
0116Nitrogen, Total Oxidised as Nmg/l2.62.12.32.92.32.21.32.33.32.6
0117Nitrate as Nmg/l2.562.062.172.672.081.991.182.13.222.41
0118Nitrite as Nmg/l0.0440.0440.130.230.220.210.120.20.0830.19
0119Ammonia un-ionised as Nmg/l0.002270.002230.007270.01260.006740.01050.03430.008710.000660.0159
0162Alkalinity to pH 4.5 as CaCO3mg/l190170170190210240220230210200
0180Orthophosphate, reactive as Pmg/l0.20.180.230.40.680.670.630.970.330.65
9901Oxygen, Dissolved, % Saturation%95.195.6103.58039.446.157.435.179.566.4
9924Oxygen, Dissolved as O2mg/l10.910.610.88.13.874.475.393.58.17.46

Samples from 5 Apr 2023 to 18 Jan 2024

NotationDeterminandUnits 5 Apr
2023
13:49
30 May
2023
12:02
23 Jun
2023
09:35
17 Jul
2023
11:12
1 Aug
2023
12:54
8 Sep
2023
12:14
16 Oct
2023
15:21
20 Nov
2023
11:39
11 Dec
2023
14:14
18 Jan
2024
10:04
0061pH7.97.977.597.657.487.557.797.858.118.25
0076Temperature of Water°C9.414.419.716.116.521.310.710.99.11.8
0077Conductivity at 25 Cμs/cm8881000865794688904859694633954
0085BOD : 5 Day ATUmg/l< 6
0111Ammoniacal Nitrogen as Nmg/l0.30.531.10.810.521.20.330.210.161.1
0116Nitrogen, Total Oxidised as Nmg/l3.62.30.951.71.71.63.12.22.24
0117Nitrate as Nmg/l3.52.110.531.471.531.362.972.142.163.87
0118Nitrite as Nmg/l0.10.190.420.230.170.240.130.0620.0410.13
0119Ammonia un-ionised as Nmg/l0.004170.01250.01620.01050.00470.01810.003940.002910.002730.011
0162Alkalinity to pH 4.5 as CaCO3mg/l210260240210180250210180160250
0180Orthophosphate, reactive as Pmg/l0.290.721.20.680.490.970.450.240.160.51
9901Oxygen, Dissolved, % Saturation%87.58218.140.331.424.968.382.288.588.3
9924Oxygen, Dissolved as O2mg/l108.361.653.963.062.27.579.0710.212.3