Tidal Reach

Temp

15.1

°C

6.7

—

6.8

mg/L

322

μS/cm

Nitrate

4.6

mg/L

Turbidity

26.4

NTU

TDS

248

mg/L

ORP

252

Chl-a

8.9

μg/L

BOD

4.6

mg/L

Risk score

Elevated nitrate, turbidity, and BOD coincide with low DO and declining ORP — possible organic pollution event.

Data quality

suspect

Timestamp: 2026-03-28 11:58

Trend review

All 10 sensor metrics over recent readings.

Temp(°C)

pH

DO(mg/L)

EC(μS/cm)

Nitrate(mg/L)

Turbidity(NTU)

TDS(mg/L)

ORP(mV)

Chl-a(μg/L)

BOD(mg/L)

Live context

Operational metadata and explainable intelligence.

Current status

Rheidol · Aberystwyth

critical

Algorithm summary

Elevated nitrate, turbidity, and BOD coincide with low DO and declining ORP — possible organic pollution event.

Alerts

Nitrate above operational threshold

high

Nitrate has remained above 4.0 mg/L for the past hour.

Turbidity exceeds safe limit

high

Turbidity reading 26.4 NTU exceeds the 25 NTU threshold.

BOD trending upward

medium

BOD has increased steadily over the last 3 readings, now at 4.6 mg/L.