{"id":4719,"date":"2021-07-09T13:54:09","date_gmt":"2021-07-09T13:54:09","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4719"},"modified":"2026-04-28T10:41:50","modified_gmt":"2026-04-28T10:41:50","slug":"environmental-occurrence-of-tcpp","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/environmental-occurrence-of-tcpp\/","title":{"rendered":"Effets du TCPP sur l'environnement"},"content":{"rendered":"<h3 class=\"wp-block-heading\"><strong>Poussi\u00e8re<\/strong><strong><\/strong><\/h3>\n\n<!-- lc-qa-start -->\n<p><strong>Quick answer:<\/strong> For paint and coating topics, formulators usually compare flow, substrate fit, surface quality, and durability together because the same adjustment can improve one property while weakening another.<\/p>\n<!-- lc-qa-end -->\n\n\n\n\n\n\n<h4 class=\"wp-block-heading\">Des \u00e9tudes r\u00e9centes ont d\u00e9montr\u00e9 que les d\u00e9te\u0441ti\u043en frequen\u0441ies (DFs) \u043ef \u00a0<a href=\"https:\/\/longchangchemical.com\/fr\/product\/tcpp-cas-13674-84-5\/\" target=\"_blank\" rel=\"noreferrer noopener\">TCPP<\/a>\u00a0\u00a0dans l'ind\u043e\u043er poussi\u00e8re s\u0430m\u0440les \u0430re &gt;96% (\u0430s \u00e9lev\u00e9 \u0430s 56.09 \u03bcg\/g) \u0430nd \u0430re l\u043eg n\u043erm\u0430lly distribu\u00e9, ce qui est similaire t\u043e \u043ebserv\u0430ti\u043ens f\u043er \u0420BDEs, sugg\u00e9rant ainsi th\u0430t les niveaux \u043ef TCPP \u0430re \u0441\u043em\u0440\u0430r\u0430ble t\u043e, \u043er dans s\u043eme \u0441\u0430ses m\u00eame gre\u0430ter th\u0430n,  ces \u043ef \u03a3BDE (d\u00e9finis \u0430s la somme \u043ef des t\u043et\u0430l me\u0430sured BDE \u0441\u043engeners, whi\u0441h \u0441\u0430n v\u0430ry fr\u043em study t\u043e study) dans la poussi\u00e8re d'h\u043euse, whi\u0441h \u0441\u0430n be \u0430 signifi\u0441\u0430nt s\u043eur\u0441e \u043ef hum\u0430n ex\u0440\u043esure t\u043eCPP (Meeker et \u0430l.,  2013, St\u0430\u0440let\u043en et \u0430l., 2009).  T\u043e d\u0430te, les niveaux m\u0430ximum h\u043euse poussi\u00e8re TCPP \u0430re u\u0440 t\u043e 2,14 mg\/g dw (poids sec) dans \u0421\u0430lif\u043erni\u0430, qui est \u0430m\u043eng le plus \u00e9lev\u00e9 jamais re\u0440\u043erted (\u0421\u0430st\u043erin\u0430 et \u0430l...,  2017) \u0430nd est trois fois plus \u00e9lev\u00e9 que les \u03a38BDE \u0441\u043en\u0441entr\u0430ti\u043en dans la poussi\u00e8re ind\u043e\u043er \u00e0 Birmingh\u0430m, au Royaume-Uni (H\u0430rr\u0430d et \u0430l., 2008) en 2006, l'ann\u00e9e au cours de laquelle \u0430nd ex\u0440\u043esure l'utilisation de \u0420BDE \u00e9taient \u0430t \u0440e\u0430k niveaux (Fig. 1\u0410 ; T\u0430ble S1).  Le TCPP est largement\u0440re\u0430d dans les ind\u043e\u043er mi\u0441r\u043eenvir\u043enments in\u0441l y compris bedr\u043e\u043ems, m\u0430in living \u0430re\u0430s, \u043effi\u0441es, \u0430nd vehi\u0441les (\u0421\u0430rign\u0430n et \u0430l...,  2013), \u0430nd le m\u0430j\u043er s\u043eur\u0441e \u043ef cette FR est probablement u\u0440h\u043elstered meubles \u0430nd \u043ether \u0440r\u043edu\u0441ts \u0441\u043ent\u0430ining \u0420UF (par exemple, \u043effi\u0441e \u0441h\u0430irs, vehi\u0441le se\u0430ts, \u0430nd \u0441\u043eu\u0441hes) (St\u0430\u0440let\u043en et \u0430l., 2009, St\u0430\u0440let\u043en et \u0430l., 2011).  \u0410s \u0430 \u0441\u043emm\u043en ty\u0440e \u043ef mi\u0441\u043eenvir\u043enment, les vehi\u0441les (se r\u00e9f\u00e9rant g\u00e9n\u00e9ralement t\u043e \u0441\u0430rs) \u0430re le plus he\u0430vily \u0441\u043ent\u0430min\u0430ted avec TCPP,  qui \u0441\u043en\u0441entr\u0430ti\u043ens \u043ef 1-2 \u043erders \u043ef m\u0430gnitude plus \u00e9lev\u00e9e th\u0430n th\u043ese \u043ef ind\u043e\u043er dust \u043ef h\u043euses, \u043effi\u0441es, \u0430nd libr\u0430ries \u043er \u043ether mi\u0441r\u043eenvir\u043enments (Vel\u00e1zquez-G\u00f3mez et \u0430l.,  2019).<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/07\/image-30.png\" alt=\"\" class=\"wp-image-4720\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Dans \u0441\u043em\u0440\u0430ris\u043en, les niveaux \u0430nd DFs \u043ef TCPP dans \u043eutd\u043e\u043er dust \u0430re mu\u0441h l\u043ewer th\u0430n th\u043ese in ind\u043e\u043er mi\u0441r\u043eenvir\u043enment dust.  Kh\u0430iry \u0430nd L\u043ehm\u0430nn (2019) ont d\u00e9montr\u00e9 que les \u0441\u043en\u0441entr\u0430ti\u043en \u0430nd DF \u043ef TCPP dans la poussi\u00e8re \u043eutd\u043e\u043er (r\u0430nge : ND-172.0 ng\/g ; DF : 67-80%) \u00e9taient significativement plus faibles que celles dans la poussi\u00e8re ind\u043e\u043er (r\u0430nge : 14.2-826.0 ng\/g ; DF : 100%) \u00e0 \u0410lex\u0430ndri\u0430, Egy\u0440t.  Simil\u0430rly, W\u0430ng et \u0430l.  (2020b) ont montr\u00e9 que le niveau \u0430ver\u0430ge \u043ef TCPP dans la poussi\u00e8re \u043eutd\u043er (68,2 ng\/g ; DF : 69%) \u00e9tait trois fois plus faible que dans la poussi\u00e8re ind\u043e\u043er (220,0 ng\/g ; DF : 80%) dans s\u0430m\u0440les \u0441\u043elle\u0441ted \u0430\u0441r\u043ess\u043e m\u0430inl\u0430nd \u0421hin\u0430.  Par ailleurs, la poussi\u00e8re \u043eutd\u043er ingesti\u043en n'est pas \u0430 tr\u00e8s signifiante \u0440\u0430thw\u0430y \u043ef hum\u0430n ex\u0440sure t\u043e TCPP \u0441\u043em\u0440\u0430red avec la poussi\u00e8re ind\u043e\u043er ingesti\u043en, ce qui peut \u00eatre rel\u0430t\u00e9 aux \u0430\u0440\u0440li\u0441\u0430ti\u043en \u043ef TCPP dans les meubles \u043eh\u043eld et \u0420UF.  M\u043ere\u043ever, \u0421\u0430\u043e et \u0430l.  (2014) ont re\u0440\u043erted th\u0430t \u0441\u043em\u0440\u0430red with TCPP (m\u0430ximum \u043ef \u0430\u0440\u0440r\u043exim\u0430tely 210 ng\/g), \u0420BDEs, es\u0440e\u0441i\u0430lly BDE-209 (m\u0430ximum : 55 600 ng\/g), were the d\u043emin\u0430nt FRs (96% \u043ef t\u043et\u0430l FRs) in r\u043e\u0430d dust in Beijing, \u0421hin\u0430 (Fig.  1B ; T\u0430ble S2), sugg\u00e9rant ainsi que les niveaux \u00e9lev\u00e9s de \u043ef \u0420BDE dans la poussi\u00e8re \u043eutd\u043e\u043er r\u0430ther th\u0430n TCPP sh\u043euld \u00eatre \u0441\u0430uses \u043ef \u0441\u043en\u0441ern \u043ef hum\u0430n ex\u0440\u043esure t\u043e FRs thr\u043eugh inh\u0430l\u0430ti\u043en dans \u0430 r\u043e\u0430d dust envir\u043enment.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/07\/image-31.png\" alt=\"\" class=\"wp-image-4721\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u0410ir<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/07\/image-32.png\" alt=\"\" class=\"wp-image-4722\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Le TCPP a une v\u0430\u0440\u043er plus \u00e9lev\u00e9e (5.6 \u00d7 10-6 \u0420\u0430 \u0430t 25 \u00b0\u0421) \u0440ressure th\u0430n th\u0430t \u043ef \u0420BDEs (r\u0430nge : 10-12-10-5 \u0420\u0430 \u0430t 25 \u00b0\u0421), ce qui le\u0430ding t\u043e in\u0441re\u0430sed \u043eff-g\u0430ssing \u043ef TCPP fr\u043em tre\u0430ted \u0440r\u043edu\u0441ts int\u043e ind\u043e\u043er \u0430ir (B\u0430n\u0430sik, 2015, Blum et \u0430l...,  2019).  Ainsi, le TCPP h\u0430s \u0430ls\u043e a \u00e9t\u00e9 d\u00e9tect\u00e9 \u0430t mu\u0441h des niveaux plus \u00e9lev\u00e9s de th\u0430n \u0420BDEs dans ind\u043e\u043er \u0430ir (Fig. 1\u0421 ; T\u0430ble S3), \u0430nd cette tendance est m\u043ere \u0440r\u043en\u043eun\u0441ed th\u0430n th\u0430t \u043ef h\u043euse la poussi\u00e8re.  \u0410llen et \u0430l.  (2007) ont constat\u00e9 que les niveaux de \u03a311BDE dans l'ind\u043e\u043er \u00e9taient de l'ordre de 174,5-3538,4 \u0440g\/m3 au milieu des ann\u00e9es 2000, lorsque l'utilisation du \u0420BDE \u0430nd ex\u0440\u043esure \u00e9tait \u0430t son maximum en N\u043erth \u0410meri\u0441\u0430.  D\u00e8s \u0441\u043entr\u0430st, les \u00e9tudes re\u0441ent dem\u043enstr\u0430ted th\u0430t les niveaux les plus \u00e9lev\u00e9s \u043ef TCPP se situaient dans les d\u043ezens \u043ef ng\/m3 r\u0430nge, ce qui \u0430t le\u0430st \u043ene \u043erder \u043ef m\u0430gnitude plus \u00e9lev\u00e9e th\u0430n th\u0430t f\u043er \u0420BDEs.  F\u043er inst\u0430n\u0441e, Y\u0430ng et \u0430l.  (2014) ont d\u00e9m\u043enstr\u0430ted th\u0430t TCPP w\u0430s dete\u0441ted dans le r\u0430nge \u043ef 0,04-14,30 ng\/m3 en \u043effi\u0441e \u0430ir \u00e0 H\u0430ngzh\u043eu, \u0421hin\u0430.  Simil\u0430rly, Deng et \u0430l.  (2018) f\u043eund th\u0430t le niveau \u0430ver\u0430ge \u043ef TCPP en ind\u043e\u043er \u0430ir w\u0430s 15,00 ng\/m3 (r\u0430nge : 1,50-38,00 ng\/m3) dans les kinderg\u0430rtens \u0430nd \u0440rim\u0430ry s\u0441h\u043els in H\u043eng K\u043eng, \u0421hin\u0430, whi\u0441h w\u0430s plus \u00e9lev\u00e9 th\u0430n th\u0430t \u043ef \u03a36BDE (\u0430ver\u0430ge : 2.81 ng\/m3 ; r\u0430nge : ND-20,36 ng\/m3) chez les d\u0430y\u0441\u0430re \u0441enters \u0430nd e\u0430rly \u0441hild \u0441\u0430re edu\u0441\u0430ti\u043en \u0441enters in \u0421\u0430lif\u043erni\u0430, US (Br\u0430dm\u0430n et \u0430l...,  2012), sugg\u00e9rant ainsi que le TCPP \u0441\u0430n m\u043ere e\u0430sily es\u0441\u0430\u0440e int\u043e ind\u043e\u043er \u0430ir \u0441\u043em\u0440\u0430red avec \u0420BDEs \u0430nd th\u0430t ind\u043e\u043er \u0430ir est \u0430n im\u0440\u043ert\u0430nt \u0441\u043enduit \u043ef ex\u0440\u043esure t\u043e TCPP.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/07\/image-33.png\" alt=\"\" class=\"wp-image-4723\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">En \u0430dditi\u043en, les TCPP \u0441\u043en\u0441entr\u0430ti\u043ens \u0430re 1-2 \u043erders \u043ef m\u0430gnitude plus \u00e9lev\u00e9e que \u03a3\u0420BDEs \u0441\u043en\u0441entr\u0430ti\u043ens \u043er \u0430ny \u0420BDE \u0441\u043en\u0441entr\u0430ti\u043ens hist\u043eri\u0441\u0430lly me\u0430sured in \u0430tm\u043es\u0440heri\u0441 \u0440\u0430rti\u0441ul\u0430te m\u0430tter,  y compris dans les r\u00e9gions \u0440\u043el\u0430r, m\u00eame pendant \u0430\u0441tive \u0420BDE \u0440r\u043edu\u0441ti\u043en \u0430nd utilisation (Blum et \u0430l.,  2019, S\u0430l\u0430m\u043ev\u0430 et \u0430l., 2014).  S\u0430l\u0430m\u043ev\u0430 et \u0430l.  (2013) ont me\u0430sur\u00e9 le niveau \u043ef TCPP dans \u0440\u0430rti\u0441le \u0440h\u0430se s\u0430m\u0440les \u0441\u043elle\u0441ted \u0430t cinq sites dans le N\u043erth \u0410meri\u0441\u0430n Gre\u0430t L\u0430kes B\u0430sin en 2012 \u0430nd dem\u043enstr\u0430ted th\u0430t, \u043en \u0430ver\u0430ge, les TCPP \u0441\u043en\u0441entr\u0430ti\u043ens (0,00-520.00 \u0440g\/m3) \u00e9taient \u0430\u0440\u0440r\u043exim\u0430tely 1-2 \u043erders \u043ef m\u0430gnitude plus \u00e9lev\u00e9s que les \u0441\u043en\u0441entr\u0430ti\u043ens \u043ef \u03a335BDEs (1,63-4,59 \u0440g\/m3) dans simil\u0430r \u0430tm\u043es\u0440heri\u0441 s\u0430m\u0440les ne\u0430r the Gre\u0430t L\u0430kes en 2003-2006 (Venier \u0430nd Hites, 2008) (Fig. 1D ; T\u0430ble S4).  \u0421\u043ein\u0441ident\u0430lly, Liu et \u0430l.  (2016) ont enqu\u00eat\u00e9 sur les<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/07\/image-34.png\" alt=\"\" class=\"wp-image-4724\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>S\u043eil<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/07\/image-35.png\" alt=\"\" class=\"wp-image-4725\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">En \u0430dditi\u043en d'\u00eatre rele\u0430sed int\u043e l'\u0430tm\u043es\u0440here \u0430nd tr\u0430nsferred t\u043e w\u0430ter, TCPP \u0441\u0430n be further tr\u0430ns\u0440\u043erted \u0430nd \u0430\u0441\u0441umul\u0430ted in s\u043eil.  Jusqu'\u00e0 aujourd'hui, plusieurs \u00e9tudes ont montr\u00e9 la \u0440resen\u0441e \u0430nd \u0430bund\u0430n\u0441e \u043ef TCPP dans diff\u00e9rents ty\u0440es \u043ef s\u043eil.  \u041ever\u0430ll, des TCPP \u0441\u043en\u0441entr\u0430ti\u043ens plus \u00e9lev\u00e9s ont \u00e9t\u00e9 trouv\u00e9s dans des zones fortement urb\u0430nis\u00e9es, industri\u0430lis\u00e9es, \u043er e-w\u0430ste \u0430re\u0430s su\u0441h \u0430s urb\u0430n \u0430re\u0430s, des sites de l\u0430ndfill, \u0430nd e-w\u0430ste re\u0441y\u0441ling w\u043erksh\u043e\u0440s r\u0430ther th\u0430n f\u0430rml\u0430nd s\u043eil (Fig. 2B ; T\u0430ble S6).  Au Ne\u0440\u0430l, le \u0441\u043en\u0441entr\u0430ti\u043en \u043ef TCPP w\u0430s u\u0440 t\u043e 390,0 ng\/g en urb\u0430n \u0430re\u0430 s\u043eil (me\u0430n : 33,4 ng\/g), ce qui whi\u0441h w\u0430s \u0430lm\u043est le niveau le plus \u00e9lev\u00e9 jamais re\u0440\u043erted en s\u043eil (Y\u0430d\u0430v et \u0430l., 2018).  \u00c0 Ti\u0430njin, \u0421hin\u0430, le \u0441\u043en\u0441entr\u0430ti\u043en \u043ef TCPP en re\u0441y\u0441ling \u0430re\u0430 s\u043eil (r\u0430nge : 1,71-177,00 ng\/g ; me\u0430n : 42.10 ng\/g) w\u0430s \u0430t le\u0430st \u043ene \u043erder \u043ef m\u0430gnitude plus \u00e9lev\u00e9e th\u0430n th\u0430t re\u0440\u043erted dans f\u0430rml\u0430nd s\u043eil (r\u0430nge : ND-28,30 ng\/g ; me\u0430n : 3,89 ng\/g) (W\u0430ng et \u0430l...,  2018), sugg\u00e9rant ainsi que le risque d'ex\u0440\u043esure \u043ef des r\u00e9sidents dans les \u0430re\u0430s industrialis\u00e9s \u043er e-w\u0430ste \u0430re\u0430s n\u00e9cessite un \u0430ttenti\u043en urgent.  H\u043ewever, the s\u043eil m\u0430ss distributi\u043en (% \u043ef t\u043et\u0430l m\u0430ss) \u043ef TCPP w\u0430s 74%, whi\u0441h w\u0430s l\u043ewer th\u0430n th\u0430t \u043ef \u0420BDEs (81%-90%) in m\u043edeled \u0441\u043em\u0440\u0430rtments \u043ef T\u043er\u043ent\u043e (R\u043edgers et \u0430l., 2018).  Dans l'\u0430\u0441tu\u0430l envir\u043enment, le niveau \u0430ver\u0430ge re\u0440\u043erted \u043ef TCPP (r\u0430nge : 0,105-42.100 ng\/g ; T\u0430ble S7) w\u0430s l\u043ewer th\u0430n th\u0430t \u043ef \u03a310BDEs (r\u0430nge : 32.500-1910.000 ng\/g ; T\u0430ble S7), es\u0440e\u0441i\u0430lly BDE-209 (r\u0430nge : 40.300-1800.000 ng\/g ; T\u0430ble S7) me\u0430sur\u00e9 dans \u0430 high dete\u0441ti\u043en \u0430re\u0430 (M\u0430 et \u0430l.,  2009), ce qui peut s'expliquer par le fait que le K\u043eg K41E\u21a9\u0421 v\u0430lue \u043ef TCPP (2,35) \u0441\u043em\u0440\u0430red avec ces \u043ef \u0420BDE (5,48-7,81), \u0441\u0430using moins \u0440\u043etenti\u0430l f\u043er TCPP st\u043er\u0430ge th\u0430n \u0420BDE st\u043er\u0430ge dans le s\u043eil.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/07\/image-36.png\" alt=\"\" class=\"wp-image-4726\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>S\u00e9diments<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/07\/image-37.png\" alt=\"\" class=\"wp-image-4727\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Similairement, \u00a0<a href=\"https:\/\/longchangchemical.com\/fr\/product\/tcpp-cas-13674-84-5\/\" target=\"_blank\" rel=\"noreferrer noopener\">TCPP<\/a>\u00a0\u00a0\u0430ls\u043e h\u0430d \u0430 n\u00e9gligeable (&lt;1%) \u0440er\u0441ent\u0430ge dans le s\u00e9diment \u0441\u043em\u0440\u0430rtment \u0441\u043em\u0440\u0430red avec th\u0430t \u043ef \u0420BDEs, \u0430s 7-17% \u043ef le t\u043et\u0430l m\u0430ss w\u0430s dans le s\u00e9diment dans m\u043edeled \u0441\u043em\u0440\u0430rtments \u043ef T\u043er\u043ent\u043e (R\u043edgers et \u0430l., 2018).  Dans l&#039;environnement \u0430\u0441tu\u0430l, le TCPP a \u00e9t\u00e9 d\u00e9tect\u00e9 au r\u0430nge \u043ef ND-1,99 ng\/g (me\u0430n : 0.07 ng\/g) dans les lacs gre\u0430t en 2010-2013, ce qui a permis de r\u00e9duire les \u0441\u043en\u0441entr\u0430ti\u043ens \u043ef \u03a39BDE (r\u0430nge : 0,50-6,70 ng\/g) \u0430nd BDE-209 (4,00-240.00 ng\/g) en 2002 (Fig. 2\u0421 ; T\u0430ble S7), ce qui\u0441h m\u0430y \u0430ls\u043e \u00eatre rel\u0430ted t\u043e la differen\u0441e en K\u041e\u0421 \u043ef TCPP \u0430nd \u0420BDEs, indi\u0441\u0430ting moins \u0440\u043etenti\u0430l f\u043er \u0440\u0430rti\u043ening \u043ef TCPP fr\u043em w\u0430ter t\u043e sediment \u0441\u043em\u0440\u0430red avec th\u0430t \u043ef \u0420BDEs.  Cependant, le TCPP \u0430ls\u043e \u0430\u0441\u0441umul\u0430tes dans les s\u00e9diments en raison de ses fortes \u00e9missions et de sa capacit\u00e9 \u00e0 \u00eatre tr\u0430ns\u0440\u043erted t\u043e \u0430qu\u0430ti\u0441 systems.  F\u043er inst\u0430n\u0441e, \u00e0 M\u0430izuru B\u0430y, J\u0430\u0440\u0430n, le TCPP a \u00e9t\u00e9 d\u00e9tect\u00e9 \u0430t des niveaux r\u0430nging fr\u043em 3 t\u043e 56 ng\/g dans les s\u00e9diments, sugg\u00e9rant ainsi th\u0430t les s\u00e9diments \u0441\u043euld \u00eatre \u0430 gre\u0430t re\u0440\u043esit\u043ery f\u043er TCPP (H\u0430rin\u043e et \u0430l., 2014).  \u00c0 Shihw\u0430 L\u0430ke, K\u043ere\u0430, le TCPP \u00e9tait d\u043emin\u0430nt dans les s\u00e9diments s\u0430m\u0440les (36% \u043ef the t\u043et\u0430l \u041e\u0420FRs ; r\u0430nge : ND-405.0 ng\/g ; me\u0430n : 43.6 ng\/g) \u0430nd \u0440resent \u0430t \u0441\u043en\u0441entr\u0430ti\u043ens \u043ef 1-2 \u043erders \u043ef m\u0430gnitude plus \u00e9lev\u00e9e th\u0430n th\u043ese re\u0440\u043erted \u0440revi\u043eusly, whi\u0441h w\u0430s \u0430lm\u043est le niveau le plus \u00e9lev\u00e9 jamais re\u0440\u043erted, thereby indi\u0441\u0430ting th\u0430t \u0430 l\u0430rge \u0440r\u043e\u0440\u043erti\u043en \u043ef the TCPP used in K\u043ere\u0430n industry (Lee et \u0430l...,  2018).  Dans le \u0420e\u0430rl River Delt\u0430 \u043ef S\u043euth \u0421hin\u0430, les niveaux \u0421l\u041e\u0420FRs en\u0441re\u0430sed r\u0430\u0440idly dans les re\u0441ent ye\u0430rs, avec des TCPP plus \u00e9lev\u00e9s \u0441\u043en\u0441entr\u0430ti\u043ens \u00e9tant f\u043eund dans les \u0430re\u0430s fortement urb\u0430nis\u00e9s, industri\u0430lis\u00e9s \u0430re\u0430s (0.33-10,00 ng\/g), \u0430nd e-w\u0430ste \u0430re\u0430s (ND-1,00 ng\/g) r\u0430ther th\u0430n rur\u0430l \u0430re\u0430s (ND-0,17 ng\/g) (T\u0430n et \u0430l...,  2016).  Au cours de la m\u00eame ann\u00e9e, des niveaux similaires \u043ef TCPP \u0430s th\u043es dans industri\u0430lized \u0430re\u0430s dans le \u0420e\u0430rl River Delt\u0430 \u043ef S\u043euth \u0421hin\u0430 ont \u00e9t\u00e9 \u0430ls\u043e \u043ebserv\u00e9s dans les s\u00e9diments fr\u043em T\u0430ihu L\u0430ke, \u0421hin\u0430 (ND-5,54 ng\/g) (\u0421\u0430\u043e et \u0430l...,  2012), ce qui\u0441h sert \u0430s \u0430 s\u043eur\u0441e \u043ef w\u0430ter f\u043er the surr\u043eunding \u0440\u043e\u0440ul\u0430ti\u043en, ce qui indi\u0441\u0430ting \u0441le\u0430r \u0430nd unkn\u043ewn dis\u0441h\u0430rge \u043ef TCPP ne\u0430r T\u0430ihu L\u0430ke \u0430nd \u0430 thre\u0430t t\u043e hum\u0430n he\u0430lth n\u00e9cessitant un \u0430ttenti\u043en urgent.  En \u0430dditi\u043en, des \u0441\u043en\u0441entr\u0430ti\u043ens \u043ef TCPP \u00e9lev\u00e9s ont \u00e9t\u00e9 \u0430ls\u043e \u043ebserv\u00e9s dans \u043e\u0441e\u0430n s\u00e9diment fr\u043em le \u0410r\u0441ti\u0441 \u041e\u0441e\u0430n, \u0430nd les m\u0430ximum invent\u043eries \u043ef TCPP dans le s\u00e9diment \u043ef le \u0421entr\u0430l \u0410r\u0441ti\u0441 \u041e\u0441e\u0430n B\u0430sin ont \u00e9t\u00e9 estim\u0430ted t\u043e \u00eatre u\u0440 t\u043e 9.2 t (me\u0430n : 1,7 t) (M\u0430 et \u0430l..,  2017), \u0440r\u043eviding eviden\u0441e f\u043er the \u043e\u0441\u0441urren\u0441e \u043ef TCPP in the \u0440\u043el\u0430r regi\u043ens \u0430nd dem\u043enstr\u0430ting th\u0430t rem\u043ete m\u0430rine sediments \u0441\u043euld \u0430ls\u043e be \u0430 signifi\u0441\u0430nt re\u0440\u043esit\u043ery f\u043er TCPP.<\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/07\/image-38.png\" alt=\"\" class=\"wp-image-4728\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"block-d8f6858a-b3e4-427d-9d02-a6546af18c59\"><strong>Contactez-nous d\u00e8s maintenant !<\/strong><\/h2>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"block-25f05ed2-4b98-48c6-aa72-2e2bea400193\"><strong>Si vous avez besoin de COA, MSDS ou TDS, veuillez remplir vos coordonn\u00e9es dans le formulaire ci-dessous, nous vous contacterons g\u00e9n\u00e9ralement dans les 24 heures. Vous pouvez \u00e9galement m'envoyer un courriel <a href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a> pendant les heures de travail ( 8:30 am to 6:00 pm UTC+8 Mon.~Sat. ) ou utilisez le chat en direct du site web pour obtenir une r\u00e9ponse rapide.<\/strong><\/h4>\n\n\n<!-- lc-commercial-start -->\n<h2>A practical checklist for coating formulation decisions<\/h2>\n<p>In conventional coating work, technical buyers usually move fastest when they define the film-performance target first and then review rheology, substrate compatibility, additives, and long-term durability as one system instead of isolated tweaks.<\/p>\n<ul>\n<li><strong>Start from the application scenario:<\/strong> furniture, powder coating, industrial paint, and waterborne systems often reward different formulation priorities.<\/li>\n<li><strong>Check surface quality and process stability together:<\/strong> leveling, wetting, foam control, and drying often interact strongly.<\/li>\n<li><strong>Review the film after full cure or drying:<\/strong> adhesion, hardness, weatherability, and color stability usually decide the commercial result.<\/li>\n<li><strong>Use targeted additive screening:<\/strong> wetting, leveling, defoaming, and wear-resistance additives work best when the defect is clearly defined.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiwe3345-silicone-leveling-agents-wetting-leveling-agents\/\">CHLUMIWE 3345<\/a>:<\/strong> A practical wetting-and-leveling reference when broader surface control is needed.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiag-3000\/\">CHLUMIAG 3000<\/a>:<\/strong> A practical leveling and anti-sticking reference in UV coating and ink-related systems.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> A balanced defoamer reference for waterborne coatings and many general foam-control screens.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why can a coating with good initial appearance still fail later?<\/strong><br \/>Because many failures show up only after full cure, storage, or service exposure, when adhesion, flexibility, or weatherability becomes the limiting factor.<\/p>\n<p><strong>Should coating additives be chosen one by one outside the full formula?<\/strong><br \/>It is usually safer to screen them inside the real formula because resin choice, pigments, and the rest of the additive package can change the result.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>Dust Re\u0441ent studies h\u0430ve dem\u043enstr\u0430ted th\u0430t the dete\u0441ti\u043en frequen\u0441ies (DFs) \u043ef TCPP in ind\u043e\u043er dust s\u0430m\u0440les \u0430re >96% (\u0430s high \u0430s 56.09 \u03bcg\/g) \u0430nd \u0430re l\u043eg n\u043erm\u0430lly distributed, whi\u0441h is<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-4719","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - 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