{"id":11541,"date":"2011-10-18T17:29:57","date_gmt":"2011-10-18T21:29:57","guid":{"rendered":"http:\/\/www.cec.org\/surveillance-et-evaluation-environnementales-des-substances-chimiques-qui-suscitent-des-preoccupations-communes\/"},"modified":"2024-07-11T13:29:24","modified_gmt":"2024-07-11T17:29:24","slug":"surveillance-et-evaluation-environnementales-des-substances-chimiques-qui-suscitent-des-preoccupations-communes","status":"publish","type":"post","link":"https:\/\/www.cec.org\/fr\/surveillance-et-evaluation-environnementales-des-substances-chimiques-qui-suscitent-des-preoccupations-communes\/","title":{"rendered":"Surveillance et \u00e9valuation environnementales des substances chimiques qui suscitent des pr\u00e9occupations communes"},"content":{"rendered":"

Une fois rejet\u00e9es dans l\u2019environnement, certaines substances chimiques peuvent faire le tour de la plan\u00e8te, \u00e9tant donn\u00e9 qu\u2019elles sont transport\u00e9es librement au-del\u00e0 des fronti\u00e8res nationales par les vents, les courants oc\u00e9aniques, les rivi\u00e8res et les ruisseaux, et finir leur p\u00e9riple dans les milieux les plus recul\u00e9s. Elles peuvent \u00e9galement demeurer dans un milieu pendant longtemps et s\u2019\u00e9tablir dans la cha\u00eene alimentaire en atteignant des concentrations qui sont aussi dangereuses pour les humains que pour les \u00e9cosyst\u00e8mes.<\/p>\n

Certaines de ces substances chimiques, dont des pesticides tels que le DDT et le lindane ainsi que le mercure et les dioxines et furanes, et les produits ignifuges tels que les polybromodiph\u00e9nyl\u00e9thers (PBDE) ont \u00e9t\u00e9 reconnues comme suscitant des pr\u00e9occupations communes au Canada, au Mexique et aux \u00c9tats-Unis compte tenu des risques qu\u2019elles pr\u00e9sentent \u00e0 l\u2019\u00e9gard de leurs citoyens et de leurs \u00e9cosyst\u00e8mes. Plusieurs de ces substances sont \u00e9galement vis\u00e9es par des accords internationaux destin\u00e9s \u00e0 r\u00e9duire les risques des substances chimiques \u00e0 l\u2019\u00e9chelle mondiale.<\/p>\n","protected":false},"excerpt":{"rendered":"

Une fois rejet\u00e9es dans l\u2019environnement, certaines substances chimiques peuvent faire le tour de la plan\u00e8te, \u00e9tant donn\u00e9 qu\u2019elles sont transport\u00e9es librement au-del\u00e0 des fronti\u00e8res nationales par les vents, les courants oc\u00e9aniques, les rivi\u00e8res et les ruisseaux, et finir leur p\u00e9riple dans les milieux les plus recul\u00e9s. Elles peuvent \u00e9galement demeurer dans un milieu pendant longtemps […]<\/p>\n","protected":false},"author":1,"featured_media":28787,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-11541","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-polluants","status-conclu"],"acf":[],"yoast_head":"\nSurveillance et \u00e9valuation environnementales des substances chimiques qui suscitent des pr\u00e9occupations communes<\/title>\n<meta name=\"description\" content=\"Une fois rejet\u00e9es dans l\u2019environnement, certaines substances chimiques peuvent faire le tour de la plan\u00e8te, \u00e9tant donn\u00e9 qu\u2019elles sont transport\u00e9es\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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