Cuyahoga Falls, Ohio —Ɛwom sɛ mmara kwan so nneɛma a wɔyɛ wɔ wiase nyinaa kɔ so yɛ akwanside ma silicone nnwuma no de, nanso mmeae kakraa bi a ɛyɛ hann wɔ hɔ, sɛnea Alexandra Rinehart, a ɔyɛ mmarahyɛfo wɔ Shin-Etsu Silicones of America Inc{1}}
Rinehart de wiase nyinaa mmara a ɛfa silicone ho no ho nsɛm foforo mae denam Silicones nneɛma a atwa yɛn ho ahyia, akwahosan ne ahobammɔ beae so wɔ Amanaman Ntam Silicone Nhyiam no ase, a wɔyɛe April 10-11 wɔ Cuyahoga Falls, Ohio.
SEHSC, Amerika Chemistry Council kuw bi, yɛ sɛ ɛbɛma wɔde silicones adi dwuma yiye denam nneɛma a wɔhwɛ so ne nneɛma a atwa yɛn ho ahyia akwahosan ne ahobammɔ ho nhwehwɛmu so, ɔkae.
"Sɛ yɛbɛka no tiawa a, yɛpɛ sɛ yɛma mmarahyɛfo nyansahu a eye sen biara a atipɛnfo a wɔayɛ nhwehwɛmu wɔ hɔ a wobetumi asi ho gyinae a ɛfata wɔ yɛn nneɛma ho," Rinehart kae.
Kuw no yɛ Amerika Atifi fam silicone ayɛfo ne wɔn a wɔde nneɛma ba amannɔne a Dow Corning Corp., Elkem Silicones, Evonik A.G., Milliken & Co., Momentive Performance Materials Holdings Inc., Shin-Etsu ne Wacker Chemie A{7}} no ka ho.
Sɛ́ kuw no, SEHSC gyina akyi sɛ aman no yɛ wɔn ankasa nhwehwɛmu a ɛfa octamethylcyclotetrasiloxane (D4) ho, a wɔde asiane a egyina so mu duru-of-akwankyerɛ akwan. asiane-gyina kwan so di dwuma de nhwehwɛmu a atwam di dwuma de di kan wɔ nhwehwɛmu a egyina asiane so{6}} a wɔde di dwuma wɔ ɔkwan a ɛyɛ mmerɛw so sen biara a wɔde di dwuma no ho kwan a wɔde di dwuma no, sɛ wɔde wɔn adwene si so a, wɔde wɔn adwene si so
Kuw no nso kamfo asiane a egyina so gyinaesi ahorow a ɛfa ɔman nnuru nhwehwɛmu ho, ne ɔman no gye U.S. nneɛma a atwa yɛn ho ahyia ho banbɔ adwumayɛbea no tom sɛ ɛyɛ mmara kwan so adwumakuw titiriw a wɔde nnuru yɛ nhwehwɛmu wɔ U.S., Rinehart kae.
U.S. Mmara .
Wɔ U.S. mu wɔ federal level no, SEHSC wiee apam a ɛfa pene a wɔpene so ho wɔ September 2017 mu de kaa EPA ho de yɛɛ wiase ankasa mu nhwehwɛmu ho nsɛm a ɛfa D4 nneɛma a atwa yɛn ho ahyia ho a wɔde bɛto nsuo a ɛfiri nsuo fĩ a wɔde yɛ adwuma no akyi, Rinehart kaa saa.
"Atwaeɛ ankasa dodoɔ a wɔsusu wɔ nhwɛsoɔ a wɔaboaboa ano wɔ nhyehyɛeɛ no mu no bɛma EPA no nneɛma a atwa yɛn ho ahyia ho asiane nhwehwɛmu ayɛ mmerɛ ama D4," ɔkaa saa.
Wɔyɛɛ nhwehwɛmu wɔ municipal ne mfiridwuma mu nsuo fĩ ho adwumayɛbea a ɛwɔ nsuo a ɛfiri nsuo ani, ne nneɛma a atwa yɛn ho ahyia ho asiane a ɛfa ho a ɛde ne ho, a ɛfa atipɛnfoɔ ho a wɔde yɛɛ nhwehwɛmu wɔ nsɛm a wɔde too dwa no mu no de baa awieeɛ sɛ nneɛma a atwa yɛn ho ahyia a wɔde wɔn ho bɛto D4 so no de asiane a nteaseɛ nnim biara mma na mmara anohyetoɔ biara ho nhia, ɔkaa saa{2}}
"EPA akyerɛ sɛ ɛde saa data a ɛyɛ den yi a wɔahyehyɛ yi bɛyɛ ne nneɛma a atwa yɛn ho ahyia ho asiane nhwehwɛmu a ɛfa D4 ho no," ɔkae. "Saa wiase ankasa data yi bɛboa ma wɔahwɛ ahu sɛ adwumakuw no de wɔn ho bɛto nsɛm a ɛda adi a ɛyɛ pɛpɛɛpɛ so sen sɛ ɛbɛyɛ nhwɛso kɛkɛ ama D4."
Sɛnea ɔman no te no, mfiase no na Washington akyerɛw D4 din ama nneɛma a wɔkyerɛ sɛ ɛyɛ endocrine, nanso wɔde too gua esiane adanse a emu yɛ duru nti, Rinehart kae.
"Ɛyɛ nkonimdi kɛse paa ma silicone advocacy a ɛne ACC mmɔdenbɔ bɔ abira," ɔkae.
Wɔ Oregon ne Vermont mu no, wɔakyerɛw D4 sɛ "ɛtra hɔ daa, biocumulative ne toxic"—anaasɛ PBT— esiane sɛ wɔde gyinapɛn ahorow di dwuma a wonsusuw ho sɛ wɔde wɔn ho bɛhyɛ mu nti, ɔkae. saa ara nso na Maine wɔ D4 ne decamethylcyclopopentasiloxane (D5) a wɔakyerɛw wɔn din sɛ PBT, esiane sɛ wɔansusuw ho nti, WAWLOHYO} DOLIGHYDOLID cycle{ Wɔankyerɛw gyinaesi biara a ɛwɔ tumi a ɛwɔ tumi kɛse. wɔ Minnesota, D5 ne D6 mu sɛ PBT esiane sɛ wɔde ka ho wɔ lists a egyina asiane so.
Rinehart kae sɛ mmara mu gyinaesi ahorow a wɔayɛ wɔ U.S. ase wɔ Reformed Toxic Substances Control Act ase (mprempren Lautenberg Chemical Safety for the 21st Century Act), a ɛma EPA tumi hwehwɛ amanneɛbɔ, kyerɛwtohɔ-siesie ne sɔhwɛ ahwehwɛde ahorow ne anohyeto ahorow a ɛfa nnuru a wɔde yɛ nneɛma ho no, ɛsɛ sɛ wɔde di dwuma wɔ u{5}fo a wɔde wɔn ho to wɔn so no so{5}fo}s no ho asɛm.
Wiase nyinaa mu asɛe .
Wɔ Europa no, dwumadi ayɛ adagyew sɛnea ɛte wɔ akyiri yi mu no, ɔkae sɛ. Anohyeto bi wɔ D4, D5 ne D6 mu wɔ ankorankoro hwɛ nneɛma mu, ɛnsɛ sɛ wɔyɛ, wɔde gu gua so anaasɛ wɔde di dwuma tẽẽ wɔ nneɛma a wɔhoro mu wɔ January 2020. akyi anohyeto no fa nneɛma a ɛwɔ D4, D5 anaa D6 a ɛboro 0{. 1 ɔha biara mu nkyem 10 so.
Stockholm Apam no yɛ amanaman ntam nneɛma a atwa yɛn ho ahyia ho apam a ɛwɔ botae sɛ ebeyi efĩ a ɛkɔ so yɛ adwuma no afi hɔ anaasɛ ɛbɛto ano hye, na Europa Aman Nkabom no de D4 too gua sɛ POP wɔ 2017 mu, nanso wɔanpene so, Rinehart kae.
"Yɛgye di nso sɛ wɔbɛyi D4 din bio sɛ POP wɔ afe 2018 mu, na yɛbɛkɔ so ahwɛ na yɛabɔ eyi ho ban," ɔkaa saa. "Silicone nnwuma gyinabea no te sɛ nea asiane a egyina so mu duru-a-ɛwɔ-a-ɛwɔ-a-ɛwɔ-a-ɛwɔ-a-wɔde yi D4 a ɛwɔ nsusuwii a ɛfata a ɛfa nneɛma a atwa yɛn ho ahyia ho no kyerɛ sɛ D4 nyɛ pop na ɛnfata mmara anohyeto biara{8}}"
European Chemicals Agency de too gua sɛ ɔmanfoɔ bisabisa nsɛm a ɛfa nneɛma a ɛhaw adwene kɛseɛ a D4, D5 ne D6 ka ho, Rinehart kaa sɛ. ɛfiri March 2018 no, EU mufoɔ ahyɛ nnuru mmiɛnsa no nyinaa ho nyansa sɛ SVHCs. sɛ saa nsusuiɛ no yɛ nea EU Aman a wɔka ho no gyina akyi a, SVHC gyinaesie a ɛtwa toɔ no bɛtumi ayɛ sɛ June2018..
EU nso de anohyeto foforo a ɛfa D4, D5 ne D6 ho too gua wɔ gyaw-on ankorankoro hwɛ nneɛma ne afoforo a wɔde di dwuma ne adwumayɛfo a wɔde di dwuma, te sɛ dry-cleaning, waxes ne polishes, ahohoro ne ahotew nneɛma. SEHSC gyinabea ne sɛ anohyeto afoforo no yɛ premature ne unjustified, na ɛsɛ sɛ wɔde mprempren mmara di dwuma ansa na wɔde foforo ama, say{6}
Sɛ́ "owia ne anidaso a ɛyɛ ray" no, Australia dwumadi no "yɛ yiye ankasa," ɔkae. de siloxanes ho nhwehwɛmu a egyina asiane so dii dwuma no, Australia de asiane tẽẽ a ɛwɔ nsu mu nkwa mu a efi nnuru a wɔde di dwuma wɔ nsu a ɛwɔ soro a wɔhwɛ kwan no mu no baa awiei sɛ ɛnyɛ nea ɛbɛyɛ yiye. Australia nhyɛɛ mmara anohyeto biara a ɛfa nneɛma yi ho.
Wɔ Japan no, wɔde D4 maa nnuru a wɔde di dwuma wɔ nnuru a wɔde di dwuma mu wɔ nnuru a wɔde hwɛ nneɛma so no mu efisɛ na ecotoxicity data binom nni hɔ. kuw no kyerɛ nnuru a ɛwɔ hɔ dedaw a wɔasi so dua sɛ ɛyɛ nea ɛkɔ so daa na ɛyɛ biocumulative, na ɛhwehwɛ sɛ wɔn a wɔyɛ nneɛma ne wɔn a wɔde ba amannɔne no de amanneɛbɔ a ɛfa dodow a wɔde di dwuma ne nsɛm afoforo a wobetumi asiw ano ho ne akwankyerɛ a wɔde siw efĩ ano ne akwankyerɛ a wɔde siw efĩ ano no di dwuma, rinehart said{2}}
D5 bɛkɔ so ahwɛ so wɔ CSCL ase wɔ General Chemical Category ase, na wɔde D6 kaa Monitoring Chemicals category. da a wɔhwɛ kwan sɛ wɔbɛkyekyɛ mu no bɛyɛ bere bi wɔ April{3}} nhwehwɛmu nhwehwɛmu mu de asusuw D4, D5 ne D6 dodow a ɛwɔ Tokyo nnwuma no mu no akɔ so wɔ Silicones voluntary product stewards{7}}}}.
Wɔ China no, Ministry of Ecology and Environment no yii D4 fii nnuru a wɔde di kan no din a wɔahyehyɛ no mu, na D4 asiane nhwehwɛmu no befi ase bere bi wɔ April. mu no, aman abiɛsa na wɔbɛyɛ asiane ho nhwehwɛmu: wiase nyinaa silicones adwumayɛ, Chinafo silicones adwumayɛbea ne China aban, ɔkae sɛ.
Sɛ mmara a ɛfa D4, D5 ne D6 ho kɔ so ma nneɛma a ɛwɔ fam te sɛ silicone rɔba a, "ɛbɛtumi aba sɛ nsunsuansoɔ bi a ɛyɛ fɛ a ɛyɛ fɛ bɛba," Rinehart kaa sɛ. "Nneɛma anohyetoɔ betumi aba wɔ EU, na ɛno bɛyɛ nkakrankakra a worempɛ sɛ wobɛboro dodoɔ bi a ɛboro dodoɔ bi so, ebia anohyetoɔ a ɛboro 0{5}} 1 ɔha biara mu a wobɛte nka wɔ wo formulations{6} ho{
"D4 ne D5 yɛ ade titiriw, nneɛma a ɛho hia kɛse ma silicone polymers, enti ɛno betumi ayɛ ɔhaw ankasa. a ɛno nti na yɛne mmarahyɛfo no reyɛ adwuma abɛn saa de ako atia saa."