{code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'ix', params: { siteId: '555365', size: [160, 600] }}, googletag.pubads().setTargeting("cdo_c", ["beauty_health_fitness"]); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, But there has been scarcely a murmur of dissent since 1974, when city health officials implemented fluoridation without having to get voter approval. bidderSequence: "fixed" 'increment': 0.5, { { bidder: 'ix', params: { siteId: '195451', size: [320, 50] }}, We do not operate any enhanced fluoridation schemes. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, }, If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. googletag.pubads().setTargeting("cdo_l", "en"); { bidder: 'ix', params: { siteId: '195464', size: [120, 600] }}, Testing for bacteria is free and is funded by Public Health Ontario. { bidder: 'sovrn', params: { tagid: '446382' }}, googletag.pubads().addEventListener('slotRenderEnded', function(event) { if (!event.isEmpty && event.slot.renderCallback) { event.slot.renderCallback(event); } }); {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, Fluoride is a compound found in fluorine and added to public water supplies in order to fight dental cavities. The only way to know if you have fluoride in your well water is to have your well water tested. "noPingback": true, }, Advisers to the Nation on Science, Engineering, and Medicine. var mapping_houseslot_a = googletag.sizeMapping().addSize([963, 0], [300, 250]).addSize([0, 0], []).build(); 'min': 3.05, window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date; { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, pbjs.que = pbjs.que || []; expires: 60 },{ { bidder: 'ix', params: { siteId: '555365', size: [300, 250] }}, var dfpSlots = {}; var pbTabletSlots = [ Unsafe levels of bacteria, nitrates and fluoride can make your water unsafe to drink. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '1666926', position: 'btf' }}, params: { {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, name: "pubCommonId", Browse our dictionary apps today and ensure you are never again lost for words. The level of naturally-occurring fluoride in the city’s water sources is extremely low. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_rightslot_flex' }}, { bidder: 'appnexus', params: { placementId: '11653860' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, } { bidder: 'appnexus', params: { placementId: '19042093' }}, {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, They revealed the clear relation between water fluoride concentration, and therefore fluoride exposure, and prevalence and severity of dental fluorosis and dental caries. March 10, 2015 — Controversy over fluoride levels in drinking water in Massachusetts has made headlines in recent months as Cambridge, Gloucester, Newburyport, and other towns in Massachusetts relook at the decades-old practice of adding fluoride to public drinking water to reduce dental caries (cavities). var mapping_houseslot_b = googletag.sizeMapping().addSize([963, 0], []).addSize([0, 0], [300, 250]).build(); { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; Cambridge Water supplies contain natural fluoride at concentrations well below the regulatory value of 1.0mg/l. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776156', position: 'atf' }}, There is more fluoride in Cambridge water than the proposed new guideline of 0.7 parts per million, annual water quality reports for 2011, 2012 and 2013 show. Bacteria, nitrates, and fluoride can exist in well water at some level. 1980 1985 1990 year 1995 9 8 7 6 5 4 3 2 1 0 DMFT key Japan Australia USA Belgium The following statements were made. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776336', position: 'btf' }}, the USA have fluoride added to their water but Japan and Belgium do not. All people ingest the mineral to some extent on a daily basis. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, { bidder: 'appnexus', params: { placementId: '11654149' }}, Looking after the water in your home. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, Usage explanations of natural written and spoken English, 0 && stateHdr.searchDesk ? { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_btmslot_mobile_flex' }}, var mapping_topslot_b = googletag.sizeMapping().addSize([746, 0], [[728, 90]]).addSize([0, 0], []).build(); { bidder: 'appnexus', params: { placementId: '11654149' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_Billboard' }}, 'pa pdd chac-sb tc-bd bw hbr-20 hbss lpt-25' : 'hdn'">. googletag.pubads().setTargeting("cdo_dc", "english"); { bidder: 'sovrn', params: { tagid: '387232' }}, googletag.pubads().set("page_url", "https://dictionary.cambridge.org/dictionary/english/fluoride"); Testing for nitrates or fluoride is $17 each. googletag.cmd.push(function() { Hard water is perfectly safe. { bidder: 'ix', params: { siteId: '195467', size: [300, 50] }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_btmslot_300x250' }}, The Drinking Water Inspectorate, which monitors drinking water in England and Wales, checks that supplies don’t contain more than 1.5 mg of fluoride per litre of water. {code: 'ad_topslot_a', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, 'increment': 1, userIds: [{ The National Academy of Sciences is a private, nonprofit, self-perpetuating society of distinguished scholars engaged in scientific and engineering research, dedicated to the furtherance of science and technology and to their use for the general welfare. initAdSlotRefresher(); Published 22 March 2018 From: googletag.pubads().enableSingleRequest(); { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, },{ "authorizationFallbackResponse": { { bidder: 'appnexus', params: { placementId: '11654157' }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, {code: 'ad_rightslot2', pubstack: { adUnitName: 'cdo_rightslot2', adUnitPath: '/2863368/rightslot2' }, mediaTypes: { banner: { sizes: [[300, 250], [120, 600], [160, 600]] } }, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; { bidder: 'ix', params: { siteId: '195467', size: [300, 250] }}, Any questions, comments or concerns call the Water Quality Laboratory at  617-349-4780 any time, if no answer leave a message or email us. "sign-in": "https://dictionary.cambridge.org/auth/signin?rid=READER_ID", { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, }, Improve your vocabulary with English Vocabulary in Use from Cambridge.Learn the words you need to communicate with confidence. {code: 'ad_leftslot', pubstack: { adUnitName: 'cdo_leftslot', adUnitPath: '/2863368/leftslot' }, mediaTypes: { banner: { sizes: [[120, 600], [160, 600], [300, 600]] } }, { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, { bidder: 'openx', params: { unit: '539971063', delDomain: 'idm-d.openx.net' }}, For fluoride, 4.0 parts per million is the Maximum Contaminant Level Goal, the level below which there is no known or expected risk to health. Find out more about sending content to Google Drive. Though fluoride is an important part of any good oral care routine, overconsumption can result in a condition known as fluorosis. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, googletag.cmd = googletag.cmd || []; It's useful for babies and children who have growing teeth and helps reduce tooth decay and cavities. dfpSlots['btmslot_a'] = googletag.defineSlot('/2863368/btmslot', [[300, 250], 'fluid'], 'ad_btmslot_a').defineSizeMapping(mapping_btmslot_a).setTargeting('sri', '0').setTargeting('vp', 'btm').setTargeting('hp', 'center').addService(googletag.pubads()); }, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; NOTICE: The Cambridge Water Department will be open to members of the public, by appointment only, Tuesday and Thursday from 9:00 a.m. to 2:00 p.m., for various services.Details about Residential Water Testing, Water Construction Permits, Hydrant Use Permits, Backflow Permits and Water Meter Replacement are available on our website. iasLog("criterion : cdo_pc = dictionary"); }); { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_topslot_mobile_flex' }}, { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, 'min': 8.50, { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }}, googletag.pubads().disableInitialLoad(); {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, The CDC is highly regarded for their scientific expertise and objectivity, and it is important to us that their position on fluoridation is unequivocal. storage: { name: "pbjs-unifiedid", { bidder: 'appnexus', params: { placementId: '11653860' }}, The words you need to communicate with confidence of optimally fluoridated water is impossible occurring from the ingestion optimally! 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