Question 17658 — waste

Summary

Mr. Bérenger Cernon draws the attention of the Minister of Ecological Transition, Biodiversity and International Negotiations on Climate and Nature to the use of shredded used tires in rainwater management works. Mr. MP was alerted by the AQVIE association, an association for the defense of the environment and the living environment of the commune of Appoigny (Yonne), following the construction of a housing estate in in which shredded used tires were used as draining and filtering material in a rainwater recovery and infiltration basin. According to information provided to the association, this technique is today used in several development operations on the national territory, even though it raises numerous questions about its consequences on the environment and public health. These Concerns are particularly strong in Appoigny, where groundwater is abundant and the Yonne River crosses the commune. In a context of scarcity of water resources and deterioration of its quality, the use of materials likely to release chemical substances in structures intended to infiltrate water into soils and water tables raises legitimate concerns. Several scientific works have demonstrated that tire shreds can contain or release different chemical substances, in particular heavy metals, polycyclic aromatic hydrocarbons (PAHs), organic compounds as well as additives used during the manufacture of tires. In its expertise published in 2024, the National Agency for Food, Environmental and Occupational Health Safety (ANSES) emphasizes that available knowledge remains insufficient to fully assess the health and environmental risks linked to certain uses of materials from used tires and recommends continuing scientific work. As early as 2011, the Eastern Center for Technical Studies of Equipment (CETE) had already highlighted the uncertainties surrounding these practices. While the precautionary principle is enshrined in Article 5 of the Charter of environment, it appears necessary to ensure that the techniques implemented for rainwater management do not compromise the quality of water resources, the protection of natural environments, or the health of populations. Consequently, he asks it to specify whether the Government has a census of rainwater management works using shredded used tires as draining or filtering material. and, where applicable, to communicate their number, their location as well as the volumes of materials concerned; whether a national assessment of the risks linked to this practice has been carried out or is in progress, in particular with regard to transfers of substances to soil, groundwater and aquatic environments; if water quality monitoring campaigns have been implemented near structures using these materials; if the Government intends to apply the precautionary principle by suspending or more strictly regulating the use of shredded used tires in rainwater infiltration works as long as their safety is not fully demonstrated and, finally, if it plans to change the regulations in order to prohibit the use of shredded used tires in rainwater management works when they are likely to present a risk to human health or the environment.

Machine translation from French. The official text remains authoritative.

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