On the basis of these results, it would be possible to draw up action plans for the remediation or closure of the landfill site.
Historically, many of these mines have had little if any environmental remediation following mine closure, and sulfur rich tailings producing a variety of low pH water bodies exist in proximity to the abandoned mine site (Muzik1982).
At the Salsigne Au As mine, southern France, arsenic contamination persists after closure and remediation of the site.
Impoundments constructed for the purpose of managing liquids from closure or remediation activities (e.g., contaminated groundwater), and which are used solely for that purpose, are not subject to the requirements of this subpart.
In the UK, soil contamination thresholds triggering closure or remediation of allotment and garden sites are based on precautionary principles, generating 'scares' that may negatively impact public health disproportionately to the actual health risks of exposure to toxins through own-grown food.
Remediation of under-recruitment to avoid study closure often leads to costly changes including a re-evaluation of the sample size required, extension of the patient intake period, modification of the inclusion/exclusion criteria, and addition of new study sites [ 5].
As a consequence, expensive soil remediation treatments or site closures can occur where the risks to public health from pollutants are negligible and the benefits to health may be much greater than these risks.
Remediation costs vary widely.
Remediation can begin early.
Remediation always requires more involvement and at greater cost.
Wastewater treatment facility (WWTF) closures are rare environmental remediation events; offering unique insights into contaminant persistence, long-term wastewater impacts, and ecosystem recovery processes.
