千滚水致癌，隔夜水有毒？别慌！真相在这里
<p class="" style="max-width: 100%; min-height: 1em; color: rgb(51, 51, 51); text-align: center;"><br></p><section label="Copyright 2018 iPaiban All Rights Reserved （本样式已做版权保护，未经正式授权不允许任何第三方编辑器、企业、个人使用，违者必纠）" donone="shifuMouseDownPayStyle('shifu_sign_007')" style="max-width: 100%;color: rgb(51, 51, 51);"><section class="" style="max-width: 100%; box-sizing: border-box !important;"><section style="max-width: 100%; box-sizing: border-box !important;"><section label="Copyright 2018 iPaiban All Rights Reserved （本样式已做版权保护，未经正式授权不允许任何第三方编辑器、企业、个人使用，违者必纠）" donone="shifuMouseDownPayStyle('shifu_sign_007')" style="max-width: 100%; box-sizing: border-box !important;"><section class="" style="max-width: 100%; box-sizing: border-box !important;"><section style="max-width: 100%; box-sizing: border-box !important;"><section data-role="outer" label="Powered by 135editor.com" style="max-width: 100%; box-sizing: border-box !important;"><section class="" data-tools="135编辑器" data-id="92630" style="max-width: 100%; box-sizing: border-box; border-width: 0px; border-style: none; border-color: initial;"><section data-width="100%" style="max-width: 100%; width: 558px; display: -webkit-flex; justify-content: center; box-sizing: border-box !important;"><section data-width="100%" style="padding-top: 10px; padding-right: 10px; padding-left: 10px; max-width: 100%; box-sizing: border-box; width: 558px; background-color: rgb(242, 244, 245); border-radius: 20px;"><section class="" data-width="100%" style="padding: 10px; max-width: 100%; box-sizing: border-box; width: 538px; font-size: 15px; color: rgb(62, 63, 62); line-height: 25px; letter-spacing: 1px;"><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(136, 136, 136); font-size: 16px; box-sizing: border-box !important;">水，是人类不可缺少的一种物质。最近，水又被推上了风口浪尖，有人称“千滚水致癌！”“隔夜水有毒千万不能喝”，引起不少人的恐慌和疑问。</span></p></section></section></section></section></section></section></section></section></section></section></section><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">那么，这些说法有依据吗？怎样喝水更加安全、健康呢？今天，我们就详细地和大家聊一聊！</p><section label="Copyright © 2016 playhudong All Rights Reserved." donone="shifuMouseDownPayStyle('shifu_t_044')" style="margin: 1em auto;max-width: 100%;color: rgb(51, 51, 51);"><section style="margin-right: auto; margin-left: auto; max-width: 100%; box-sizing: border-box !important;"><section class="" style="max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top-color: rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom: 10px solid rgb(135, 201, 67); display: inline-block; opacity: 0.5; box-sizing: border-box !important;"></section><section class="" style="margin-left: -3px; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top: 10px solid rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom-color: rgb(135, 201, 67); display: inline-block; box-sizing: border-box !important;"></section><section style="margin-left: 0.5em; max-width: 100%; display: inline-block; box-sizing: border-box !important;"><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(131, 172, 93); box-sizing: border-box !important;"><span style="max-width: 100%; font-size: 18px; box-sizing: border-box !important;">千滚水真的致癌吗？</span></strong></p></section><section class="" style="margin-left: 0.5em; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top: 10px solid rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom-color: rgb(135, 201, 67); display: inline-block; box-sizing: border-box !important;"></section><section class="" style="margin-left: -3px; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top-color: rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom: 10px solid rgb(135, 201, 67); display: inline-block; opacity: 0.5; box-sizing: border-box !important;"></section></section></section><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">千滚水就是在炉上沸腾了一夜或很长时间的水，还有电热水器中反复煮沸的水。传言喝这样的水会致癌。其实，水在反复烧开的过程中，由于高温缺氧的问题，的确会导致水中部分硝酸盐物质转化成亚硝酸盐。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="text-align: center; max-width: 100%; min-height: 1em; color: rgb(51, 51, 51);"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">但是，经试验调查证明，自来水加热后随着水煮沸次数的增多，水中的亚硝酸盐含量不升反降。并且，人们至少要一次性饮用20吨“千滚水”才可能造成亚硝酸盐中毒。可见，千滚水中亚硝酸盐含量高的说法纯属谣言。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">除了细菌含量外，水中的其他物质并不会有太大变化。所以，只要水源合格，即使反复烧开，水质也不会发生明显的变化。因此，说“千滚水”不能喝，没有科学依据。</p><section label="Copyright © 2016 playhudong All Rights Reserved." donone="shifuMouseDownPayStyle('shifu_t_044')" style="margin: 1em auto;max-width: 100%;color: rgb(51, 51, 51);"><section style="margin-right: auto; margin-left: auto; max-width: 100%; box-sizing: border-box !important;"><section class="" style="max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top-color: rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom: 10px solid rgb(135, 201, 67); display: inline-block; opacity: 0.5; box-sizing: border-box !important;"></section><section class="" style="margin-left: -3px; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top: 10px solid rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom-color: rgb(135, 201, 67); display: inline-block; box-sizing: border-box !important;"></section><section style="margin-left: 0.5em; max-width: 100%; display: inline-block; box-sizing: border-box !important;"><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(131, 172, 93); box-sizing: border-box !important;"><span style="max-width: 100%; font-size: 18px; box-sizing: border-box !important;">凉开水放久了能喝吗？</span></strong></p></section><section class="" style="margin-left: 0.5em; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top: 10px solid rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom-color: rgb(135, 201, 67); display: inline-block; box-sizing: border-box !important;"></section><section class="" style="margin-left: -3px; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top-color: rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom: 10px solid rgb(135, 201, 67); display: inline-block; opacity: 0.5; box-sizing: border-box !important;"></section></section></section><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">开水放置隔夜，并不能改变水的性质，其微生物可能稍有增加，但是对人体的危害也并没有那么严重。因此建议水烧开后放置于有盖的容器中，只要不被污染，是可以饮用的。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="text-align: center; max-width: 100%; min-height: 1em; color: rgb(51, 51, 51);"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">凉开水放久了能喝吗？专家表示，水多久会变质，并没有固定时间，主要受温度等外界客观环境影响。夏季空气湿度较高、细菌繁殖较快，极易污染水，引起人体腹泻。所以，夏季的隔夜水最好别喝，冬季的隔夜水最好装在有盖的容器中（如暖水瓶）。烧开的水不宜放置太久，过了几天就最好别再饮用了。桶装纯净水，一般建议一周内喝完。</p><section label="Copyright © 2016 playhudong All Rights Reserved." donone="shifuMouseDownPayStyle('shifu_t_044')" style="margin: 1em auto;max-width: 100%;color: rgb(51, 51, 51);"><section style="margin-right: auto; margin-left: auto; max-width: 100%; box-sizing: border-box !important;"><section class="" style="max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top-color: rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom: 10px solid rgb(135, 201, 67); display: inline-block; opacity: 0.5; box-sizing: border-box !important;"></section><section class="" style="margin-left: -3px; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top: 10px solid rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom-color: rgb(135, 201, 67); display: inline-block; box-sizing: border-box !important;"></section><section style="margin-left: 0.5em; max-width: 100%; display: inline-block; box-sizing: border-box !important;"><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(131, 172, 93); box-sizing: border-box !important;"><span style="max-width: 100%; font-size: 18px; box-sizing: border-box !important;">隔夜水真的有毒吗？</span></strong></p></section><section class="" style="margin-left: 0.5em; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top: 10px solid rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom-color: rgb(135, 201, 67); display: inline-block; box-sizing: border-box !important;"></section><section class="" style="margin-left: -3px; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top-color: rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom: 10px solid rgb(135, 201, 67); display: inline-block; opacity: 0.5; box-sizing: border-box !important;"></section></section></section><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">有人说隔夜水喝了之后有毒，甚至还会致癌，其理由仍然是“亚硝酸盐”的问题。亚硝胺类化合物的确是一种新型的饮用水消毒副产物，但是我们从饮用水中摄入的亚硝胺含量实则“微乎其微”。<br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="text-align: center; max-width: 100%; min-height: 1em; color: rgb(51, 51, 51);"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">因为亚硝胺物质的产生需要适宜的环境和前体物质，但是水在烧开之后其中的细菌物质会失去活性，硝酸盐含量较少，根本没有产生大量亚硝胺物质的基础。<br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">所以，开水就算放了一宿，也并不会改变水本身的性质，微生物含量可能有所增加，但不会对人体产生较大危害。</p><section label="Copyright © 2016 playhudong All Rights Reserved." donone="shifuMouseDownPayStyle('shifu_t_044')" style="margin: 1em auto;max-width: 100%;color: rgb(51, 51, 51);"><section style="margin-right: auto; margin-left: auto; max-width: 100%; box-sizing: border-box !important;"><section class="" style="max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top-color: rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom: 10px solid rgb(135, 201, 67); display: inline-block; opacity: 0.5; box-sizing: border-box !important;"></section><section class="" style="margin-left: -3px; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top: 10px solid rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom-color: rgb(135, 201, 67); display: inline-block; box-sizing: border-box !important;"></section><section style="margin-left: 0.5em; max-width: 100%; display: inline-block; box-sizing: border-box !important;"><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(131, 172, 93); box-sizing: border-box !important;"><span style="max-width: 100%; font-size: 18px; box-sizing: border-box !important;">怎样喝水才更加安全、健康？</span></strong></p></section><section class="" style="margin-left: 0.5em; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top: 10px solid rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom-color: rgb(135, 201, 67); display: inline-block; box-sizing: border-box !important;"></section><section class="" style="margin-left: -3px; max-width: 100%; width: 0px; height: 0px; border-left: 5px solid transparent; border-top-color: rgb(135, 201, 67); border-right: 5px solid transparent; border-bottom: 10px solid rgb(135, 201, 67); display: inline-block; opacity: 0.5; box-sizing: border-box !important;"></section></section></section><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">1、只要喝的水干净、合格且安全，均可放心饮用。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">2、喝水，不要拘泥于“8杯水”，杯子大小不同，饮水量自然也就不同。</p><section label="Copyright © 2015 playhudong All Rights Reserved." donone="shifuMouseDownCard('shifu_c_003')" style="margin: 1em 4px 1em 7px;max-width: 100%;color: rgb(51, 51, 51);"><span style="margin-top: 15px; margin-left: -7px; max-width: 100%; float: left; display: block; box-sizing: border-box !important;"><section class="" style="margin-right: 10px; padding: 5px 8px; max-width: 100%; min-height: 33px; color: rgb(255, 255, 255); text-align: center; background-color: rgb(135, 201, 67); line-height: 1.5; font-size: 15px; min-width: 75px; box-sizing: border-box !important;">特别提醒</section></span><section style="padding: 16px; max-width: 100%; box-shadow: rgba(0, 0, 0, 0.498039) 0px 0px 4px; width: 547px; font-size: 14px; line-height: 1.4; box-sizing: border-box !important;"><span style="max-width: 100%; font-size: 16px; box-sizing: border-box !important;">《中国居民膳食指南》建议成年人每天饮用1500—1700ml水最为靠谱，请依据杯子大小，自行计算“杯数”。如果天气较热或者是一些特殊人群（室外工人、运动员等），还应该适当增加饮水量。</span></section></section><p style="text-align: center; max-width: 100%; min-height: 1em; color: rgb(51, 51, 51);"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">3、讲卫生，不要喝“生水”。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">饮水，要注意卫生，保证干净且安全。很多人习惯直接喝未经加热煮沸的自来水，但这样的“生水”中可能含有氯气、细菌、虫卵等有害物质。所以，请加热煮沸之后再喝。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">4、不喝烫水和冰水，水温要“适宜”。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">喝冰水，会使胃黏膜突然变冷，引起毛细血管收缩，从而引起胃肠不适。喝烫水无疑会损伤黏膜（食道、胃），甚至会增加患消化道癌症的风险。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">所以，37摄氏度左右的水最为靠谱，与体温相当，人体接受程度会更高。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="text-align: center; max-width: 100%; min-height: 1em; color: rgb(51, 51, 51);"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">5、慢慢喝，不要“一次性大量饮水”。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">喝水别着急，要“小口慢喝”，拒绝口渴之时一次性大量饮水。单次饮水不得超过500毫升，拒绝“水中毒”。小口饮水，每次200ml左右，减缓速度慢慢饮用。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">6、不要等到口渴之后再喝水。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">由于种种原因，许多人总是喜欢等到口渴之后再去饮水，但此时身体已经严重缺水，对于身体代谢存在较大威胁。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">所以，养成靠谱的饮水习惯，起床后、吃饭前、睡觉前等重要时间段都要刻意少量饮水。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="text-align: center; max-width: 100%; min-height: 1em; color: rgb(51, 51, 51);"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">7、合理看待广告，不要迷恋“概念水”。</p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);"><br style="max-width: 100%; box-sizing: border-box !important;"></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);">市面上的“噱头水”五花八门，富氧水、碱性水以及生态水等概念水层出不穷，其实更多的都只是“宣传噱头”而已。相比之下，还是白开水更加实惠靠谱。“概念水”并没有什么神奇之处，不要为了所谓的健康而花了冤枉钱。</p><p><br></p><p class="" style="max-width: 100%; min-height: 1em; color: rgb(51, 51, 51); text-align: right;"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 14px; letter-spacing: 2px; box-sizing: border-box !important;">来源：科普中国</span></p><p class="" style="max-width: 100%; box-sizing: border-box; min-height: 1em; color: rgb(51, 51, 51); text-align: right;"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 14px; letter-spacing: 2px; box-sizing: border-box !important;">编辑：万洋 实习生：肖倩</span></p><div><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 14px; letter-spacing: 2px; box-sizing: border-box !important;"><br></span></div><section data-role="outer" label="Powered by 135editor.com" style="max-width: 100%; box-sizing: border-box !important;"><section class="" data-tools="135编辑器" data-id="92785" style="max-width: 100%; box-sizing: border-box; border-width: 0px; border-style: none; border-color: initial;"><section data-width="100%" style="max-width: 100%; box-sizing: border-box !important;"><section class="" data-tools="135编辑器" data-id="92578" style="max-width: 100%; box-sizing: border-box !important;"><section data-width="100%" style="max-width: 100%; box-sizing: border-box !important;"><section data-width="100%" style="max-width: 100%; box-sizing: border-box !important;"><section data-width="100%" style="max-width: 100%; box-sizing: border-box !important;"><section class="" style="max-width: 100%; box-sizing: border-box !important;"><section class="" data-tools="135编辑器" data-id="92577" style="max-width: 100%; box-sizing: border-box !important;"><section data-width="100%" style="max-width: 100%; box-sizing: border-box !important;"><section class="" data-tools="135编辑器" data-id="92577" style="max-width: 100%; box-sizing: border-box !important;"><p style="text-align: left; max-width: 100%; min-height: 1em; line-height: 1.75em; box-sizing: border-box !important;"><br></p></section></section></section></section></section></section></section></section></section></section></section>
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