product categories that may have an adverse impact on human health and the environment if they are not managed in an environmentally sound manner, and then expanding the list based on the progress of relevant measures taken by parties. It is also necessary to discuss how to keep the list updated. One expert sought clarification as to whether the thresholds for the Minamata Convention need to be linked to the provisions of the Basel Convention on hazardous waste. According to that expert, if the thresholds needed to be aligned with the definition of hazardous waste under the Basel Convention, the thresholds might be too high to assure the sound management of mercury waste. 4. Work needed to establish thresholds Issues that need further discussion identified in the previous paragraphs include the following: Description of certain types of waste, such as residues from waste treatment; Priorities for waste other than waste contaminated with mercury or mercury compounds; Which approach (total mercury content, release potential and listing approach) should be applied for specific types of waste. In addition, experts suggested some specific tasks including the following: Survey of national information to be conducted, including the threshold for requiring the recovery of mercury, and acceptance criteria for waste disposal facilities; Information on mercury concentration in waste to be collected; Parties to be requested to provide types of waste not covered in the table, including the list of mercury-added products; Information on available methods for sampling, pre-treatment and analysis of mercury waste to be analysed, including their cost. A number of experts observed that face-to-face meetings or conference calls would be needed for further work.
product categories that may have an adverse impact on human health and the environment if they are not managed in an environmentally sound manner, and then expanding the list based on the progress of relevant measures taken by parties. It is also necessary to discuss how to keep the list updated. One expert sought clarification as to whether the thresholds for the Minamata Convention need to be linked to the provisions of the Basel Convention on hazardous waste. According to that expert, if the thresholds needed to be aligned with the definition of hazardous waste under the Basel Convention, the thresholds might be too high to assure the sound management of mercury waste. 4. Work needed to establish thresholds Issues that need further discussion identified in the previous paragraphs include the following: Description of certain types of waste, such as residues from waste treatment; Priorities for waste other than waste contaminated with mercury or mercury compounds; Which approach (total mercury content, release potential and listing approach) should be applied for specific types of waste. In addition, experts suggested some specific tasks including the following: Survey of national information to be conducted, including the threshold for requiring the recovery of mercury, and acceptance criteria for waste disposal facilities; Information on mercury concentration in waste to be collected; Parties to be requested to provide types of waste not covered in the table, including the list of mercury-added products; Information on available methods for sampling, pre-treatment and analysis of mercury waste to be analysed, including their cost. A number of experts observed that face-to-face meetings or conference calls would be needed for further work.