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mm y DEPARTMENT # OF HEALTH PPFFBBAA aanndd DDrriinnkkiinngg WWaatteerr erfuorobutanic ci (P84) son ofa group of ated cemicas known as peruorochericals PPFFBBAA Perfluorobutanoic acid (PFBA) is one of a group of related chemicals known as perfluorochemicals ((PPFFCCs)s.). TThheessee aarree aallssoo ccaalllleedd ppeerrfflluuoorriinnaatteedd aallkkyyllaatteedd ssuubbssttaanncceess ((PPFFAASS).). TThhiiss ggrroouupp ooff cchheemmiiccaallss iiss. Commonly sido ck ad rsa cons procs, 104 cogfr Tghing osm, commonly used in non-stick and stain-resistant consumer products, food packaging, fire-fighting foam, nd musi processes and industrial processes. Pris a reokdown product of other ECs ued nstisesistat ais, paper od packaging, and PFBA is a breakdown product of other PFCs used in stain-resistant fabrics, paper food packaging, and tots. PPas aB se fofmamacarng shoontonc Him The 1 Cowmspceamner carpets. PFBA was also used for manufacturing photographic film. The 3M Company was once a major laces of PSA ae dct Comaning PFOA uk rodUrion was Shad ot 195. manufacturer of PFBA and products containing PFBA but production was phased out in 1998. PPFFBBAA iinn MMiinnnneessoottaa WWaatteerrss The Mimnsots Poluion Conrl Agency (MPCA) as detected PFOA in Minnesota vers hat ave ben The Minnesota Pollution Control Agency (MPCA) has detected PFBA in Minnesota rivers that have been Lesfo RCs. Wt et oon wre guna om owns o ce. POA wos recomment tested for PFCs. Most test locations were downstream from towns or cities. PFBA was more commonly ddeetteecctteedd tthhaann ootthheerr P PFCF siinnC tthhoosssee wwaatteerrss.1.'"2 PFA has een detected i priate drinking water wel and bli king water sstsinseveral PFBA has been detected in private drinking water wells and public drinking water systems in several arts of Minnesota here Know MSU us of spose f PFOA Get 1 he past. PFOA os been parts of Minnesota where known industrial use or disposal of PFBA occurred in the past. PFBA has been oun sample feted seas or POA and reared cremicas ddeetteecctteedd iinn ssoouurrcceess ooff ppuubblliicc ddrriinnkkiinngg wwaatteerr aatt lleevveellss uupp ttoo 33..55 ppaarrttss ppeerr bbiillllioionn ((ppppbb))..3* MMDDHH aanndd MMPPCCAA routinely sample affected areas for PFBA and related chemicals. MIVDIDHH GGuuiiddaannccee VVaalluuee Sa5eodn aval information, MOH develaogupidaencde valofu KX pbfo BA ndrinking Based on available information, MDH developed a guidance value of X.XX ppb for PFBA in drinking arr MON Eudance vt redevlopd fo Tate POs Wh 316 RG RET 1 00 water. MDH guidance values are developed to protect people who are most vulnerable to the Sonal hrmil feof acconttaminsant. person dining water oor blow the gudance valve potentially harmful effects of a contaminant. A person drinking water at or below the guidance value ocd et nt oma fo hil mh ect. would be at little or no risk for harmful health effects. PPootteennttiiaall HHeeaalltthh EEffffeeccttss Intaratory animal sues, fectosf EBA exposure included thyroid and ver fects, such 3s In laboratory animal studies, effects of PFBA exposure included thyroid and liver effects, such as Intense tan es weigh, cng md hormone, deren co ser and cel increased thyroid and liver weight, changes in thyroid hormones, decreased cholesterol, and cellular Changs th rgans. uh fects f PEGA export. need dpedeveomens miestonts, changes in both organs. Other effects of PFBA exposure included delayed developmental milestones, anges nb we, and deems ad plood cls and hemetlobin: Sues of PTOA people re changes in body weight, and decreased red blood cells and hemoglobin. Studies of PFBA in people are locking lacking. PPootteennttiiaall EExxppoossuurree ttoo PPFFBBAA Phas been detected i th blood of pale exposed FEC, but ls common thn thr PEC, PFBA has been detected in the blood of people exposed to PFCs, but is less common than other PFCs. Tot hum sod 5 able 0 alminte PFOA fe nn soma vr PECs The human body is able to eliminate PFBA faster than some other PFCs.4 33774466..00000011 rae EExxhhiibbiitt 3746 State of Minnesota v. 3M Co., Cour~ File No. 27-CV-10-28862 STATE Tze STATE_07429985 PFBA AND DRINKING WATER Topping nara fected PEC rls or dios, king rr may bea rs For people living in areas affected by PFC release or disposal, drinking water may be a major source of A SR PFBA exposure. Reverse osmosis and activated carbon filter treatment systems can reduce the levels of Hann dining we my ron. PFBA in drinking water in your home. Soma cnt romamots olan uo sagan anda fa ugh rani Some PFCs transfer from a mother to infant during pregnancy and to an infant through breastmilk. ratesing sport or shor nd re bea of aot aa MON Breastfeeding is important for the short and long term health of both a mother and infant. MDH ented atonement assed pegpnt women plots ested recommends that women currently breastfeeding, and pregnant women who plan to breastfeed, Covina tos. Eu west doise ar osr pea n fester. continue to do so. Exclusive breastfeeding is recommended by doctors and other health professionals. If Tomas ad hs igh totter nw Toned is formula is used by those living in affected areas, it should be prepared only with treated or bottled --water. PPFFBBAA iinn tthhee EEnnvviirroonnmmeenntt lends con nds of BA os decline scenes, 10 oi rmedin he While industrial production and use of PFBA has declined in recent years, PFBA can be formed in the emer emo roooh tted rrst vr FTO ses environment as a breakdown product of related PFCs that are still in use. PFBA is persistent in the remnant mani dover went wai nolo er. 9A ms curds environment, meaning it does not break down easily in soil or water. PFBA more easily dissolves in east Pandy ot 1 The mea oro Bg he ro 1d water than other PFCs and does not stick to soil. This means it can move faster in the environment and arcesaas nroew. evn re res VienFsFA, ed 0S may contaminate large areas of groundwater. In several large areas of Minnesota, PFBA has moved into piste groundwater over the course of many years. HHeeaalltthh RRiisskk AAsssseessssmmeenntt UUnniitt THe MOH Heth sk Asst Unit xe 0 belt es camamansin dkinegr The MDH Health Risk Assessment Unit evaluates the health risks from contaminants in drinking water Sores nev3s ea eed tte loTrtdsn rer MOMs cobras ah sources and develops health-based guidance values for drinking water. MDH works in collaboration with Ene vinnste allo Conta Abr onde Wires Daprofreerst 0 wae sans the Minnesota Pollution Control Agency and the Minnesota Department of Agriculture to understand En scarenc on tment she of ornate the occurrence and environmental effects of contaminants in water. RReeffeerreenncceess 1 rd ar sty ain Cel. 207. WtQuy Fr sr ras, 1. National Water Quality Monitoring Council. 2017. Water Quality Portal (https://www.waterqualitydata.us). Joysatens Accessed April 2017. 2 oemaCporttgeon NPA." Vis Pos 202 2. Minnesota Pollution Control Agency (MPCA). 2013. "Perfluorochemicals in Mississippi River Pool 2:2012 eo onteo ope ed AT. Update." Retrieved from https://www.pca.state.mn.us/sites/default/files/c-pfc1-21.pdf. Accessed April 2017. 3 maor me See nNS 03. sed Woo At 27 3. Minnesota Drinking Water Information System (MNDWlS). 2017. Accessed by MDH staff April 2017. Le tran Sooo i So dsm 4. Minnesota Department of Health. 2009. "Environmental Public Health Tracking and Biomonitoring in Vis sano em ond esd Minnesota." Retrieved from http://www.health.state.mn.us/divs/hpcd/tracking/pubs/schsac.pdf. Accessed April 2017. FTMinnesota DepaCcment of Health Sm Health Risk Assessment Unit health.isk@state. mus health.risk@state.mn.us i www.health.state.mn.us F EARmR CLEE AN ED weroOS CWWLAAETTAEENRR hes = ~ A N D & MAY 2017 TTooobstatin ithsisiihne[omrmmaaitioonniinnea di[[erent [ormat, call: 551-2014899. oe[Page] stare orszons STATE_07429986 33774466..00000022