How does the actual DO rate compare to the suitability for marine life?

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Lido Beach Dead Fish Incident Linked to Low Dissolved Oxygen Levels

Initial investigations by the Department of Environment (DoE) in Johor have concluded that the presence of dead fish at Lido Beach was caused by changes in the ecosystem, specifically a low dissolved oxygen (DO) rate. The actual recorded DO level in the waters was found to be 3.6 mg/l, which is significantly below the 5.0 mg/l benchmark considered suitable for marine life. This ecological imbalance, rather than industrial or sewage pollution, is identified as the primary factor leading to the incident.
Dissolved Oxygen Levels Below Suitability Threshold

Water quality readings taken by the DoE at Lido Beach revealed a dissolved oxygen level of 3.6 mg/l. This figure falls considerably short of the 5.0 mg/l standard that is deemed necessary for the well-being and survival of marine organisms. The discrepancy highlights a critical deficiency in the oxygen content within the water, creating an environment inhospitable to aquatic life.
Ecosystem Changes Identified as Cause

The DoE's in-situ measurements have led to the conclusion that alterations within the water's ecosystem are responsible for the fish deaths. The low DO rate is indicative of an environmental shift that has negatively impacted the marine life present in the Lido Beach waters. This finding rules out the possibility of direct industrial or sewage effluent discharge as the cause.
Investigation Involves Multiple Agencies

The investigation into the dead fish incident involved a coordinated effort among several government bodies. The Johor Department of Environment conducted the field investigation on August 28, with support from the Johor Baru City Council (MBJB) for clean-up operations. Additionally, the Johor Baru District Fisheries Department analysed water samples, assisted by the Johor Baru South police.

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How does the actual DO rate compare to the suitability for marine life?

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