(i) How do environmental factors affect the role of aerosol transmission of the virus
(ii) How does the virus survive in different environmental compartments (land, water, air) and conditions?;
(iii) What are the environmental impacts of viral spread from the disposal of medical waste and contaminated articles?
(iv) How does this virus survive and dissipate in human feces and wastewaters and the wider environment ; and not the least (v) How effective are water disinfection treatments at stopping viral spread and how can we improve the current strategies for the containment of the outbreak in the environment?,
Answers to these questions provide opportunities for research data for informed decision making.
One of the operational challenges of COVID-19 control is the inadequacy of testing facilities when compared to large populations to be tested. Dutch scientists reported a break through recently having found that traces of the pathogen “SARS-CoV-2 which is the virus that causes COVID -19 were present in the feces of many infected persons and wastewater.’’ This implies that ‘’sewage surveillance could be a useful tool in detecting whether COVID-19 is present in a population before testing patients.
COVID-19 waste or any materials/articles contaminated with coronavirus fall under the category of Medical/Clinical wastes which are hazardous or dangerous or deadly waste (1989 Basel Convention) with inherent chemical and physical characteristics, such as toxicity, ignitability, corrosiveness, carcinogenicity or other properties which also cause death. This has implication for the management of wastes from COVID-19 or articles/materials contaminated with the virus from testing laboratories ; Isolation facilities; and quarantine facilities for the treatment of infected persons as well as wastes from lockdown centers respectively and as appropriate.
The use of personal protective equipment covering from head to toe and of the correct quality; specifications and standard cannot be over-emphasised. Chicago City workers in USA said they’re picking up 50 percent more garbage during lock-down or stay-home order — but aren’t issued masks. Nigeria has lessons to learn here by recognizing the value of efficient waste management system and safety protection for waste handlers in the lockdown areas of the country such as Lagos, Ondo, Abuja and Abeokuta.
Conclusion
The Nigerian government Coronavirus Emergency Response Strategy and the implementation have been highly commendable, making Nigerians proud. The performance of the Lagos State “Action Governor”, H.E. Babajide Sanwo-Olu, has been inspirational. The Presidential Task Force too has performed creditably; yet it should take on board international clamour that proper waste management must be Included in national Coronavirus Emergency Response plan in all countries. This should also be implemented in all the states of the federation.
In this regard, the Federal Ministry of Environment, with the mandate for hazardous waste management control in the country, should develop National Guidelines for proper Management of coronavirus wastes, including high temperature incineration technology with pollution control. The presidential taskforce through Federal Ministry of Environment should also carry out Post Impact Environmental Assessment (PIEA) of the following activity centres: lsolation ; Testing and Quarantine’; De-contamination materials /equipment store house etc, to ascertain that no legacy of deadly coronavirus waste pollution remains at these sites.
Waste management must be Included in Coronavirus Emergency Response plan. Furthermore, professional bodies in waste management and technology must be fully captured into the national response plan.
- Professor Osibanjo is President, Waste Management Society of Nigeria (WAMASON).