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捡个盐块带回家留作纪念？景区回应：不建议！可能含毒素
The article reports on visitors picking up salt blocks from Qarhan Salt Lake in Qinghai. Staff at the scenic area point out that unrefined salt blocks may contain toxins and are not recommended for carrying, and also introduces the formation of the salt lake and the salt refining process. Follow·
Yesterday·1177 words (about 5 min)
AI Summary & Key Points
Summary
The article reports on the phenomenon of some visitors picking up salt blocks from the Qarhan Salt Lake scenic area as souvenirs. Scenic area staff stated that unrefined natural salt blocks may contain mild toxins (such as phosphates, etc.) and pose a risk of accidental ingestion, advising visitors not to take them. The reporter attempted to contact relevant departments in Golmud City and Haixi Prefecture for verification but did not receive further response. The article also provides scientific knowledge about the salt lake: Qarhan Salt Lake is the world's second-largest salt lake, and its salt forms through natural evaporation; however, it must go through refining processes (washing, drying, milling, etc.) before it can be consumed. It also reminds visitors to pay attention to safety, such as avoiding going into the water and wearing slip-resistant shoes.
Main Points
* 1. Unrefined salt blocks may contain toxins and are not recommended for carrying.
Scenic area staff noted that natural salt blocks contain trace impurities (such as phosphates) that may be harmful to the human body, and advised visitors not to pick them up arbitrarily.
* 2. Salt lake salt must be refined before it can be eaten.
Salt lake salt extraction consists of two stages: evaporation-based salt drying and refining. Through washing and other steps, the refining process removes impurities to meet national table salt standards.
* 3. Qarhan Salt Lake has special geographical and scientific value.
The salt lake formed in the closed environment of the Qaidam Basin, accumulating over tens of thousands of years through evaporation. It is now the world's second-largest salt lake and features typical extreme environmental characteristics.
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央视网 2026-08-03 20:08 北京
近日，一网友 发帖称 自己从 青海 察尔汗盐湖 景区 捡拾盐块 带回家做纪念，有人称盐块存在放射性，引发关注。
!Image 9: 图片△网友发布的盐块照片。图/发帖人
8月2日，察尔汗盐湖景区工作人员称确有部分游客捡拾小盐块，但景区不建议游客携带，日后恐会出现误食情况。“没有提纯过的盐块，里面可能会有轻微的毒素。”工作人员介绍，不过未回复更多事宜。记者随后致电格尔木市旅游部门、自然资源部门询问情况未果。
2日，记者以市民身份咨询海西州文旅部门，工作人员称对能否捡拾等具体要求暂不清楚，但同样不建议游客捡拾。“景区内的盐存在矿物质，可能会超标，不能直接吃需要加工。”工作人员还指出，景区内的盐生长较为缓慢，现在景区客流量大，如果每个人都装一点，景区恐怕吃不消。
△盐湖游玩避坑指南
另据格尔木市宣传部发布的盐湖指南显示：因卤水腐蚀性极强，游客绝对不能下水；盐壳锋利，严禁游客穿拖鞋或网面鞋。
据央广网等媒体报道，察尔汗盐湖位于中国三大内陆盆地之一的柴达木盆地南部，地跨格尔木市和都兰县，由达布逊湖、南霍布逊、北霍布逊、涩聂湖等四个盐湖汇聚而成，总面积5856平方公里，是世界第二大盐湖，亚洲盐湖之王，被誉为内陆“固体海洋”。
察尔汗盐湖。图源：视觉中国
据了解，柴达木盆地远古时为浩瀚海洋，随着青藏高原的崛起，逐渐演化为内陆盆地。约三万七千年前，这片内陆水域彻底封闭，形成了现今我们所见到的柴达木盆地。其四周环山，气候干燥，中纬度西风环流导致水汽难以到达，降水量极少。
在这样的极端环境下，湖泊的蒸发速度远超补给，湖水逐渐浓缩，直至干涸，留下的是广袤的盐滩，但原始湖水中的盐分只是现在察尔汗盐湖的一个初始基础。
由于盐湖成为一个封闭的汇水区域，汇入盐湖的水中就含有各种盐，虽然含量极其微小，但经数万年的汇集，再加上淡水的不断蒸发，使得湖水越来越浓，最终形成如今的盐湖。
这些天然“盐湖盐”看似洁白，但与市面上所售的达到国家食盐食用标准的精制“湖盐”并不相同，不能直接食用。
湖盐的提炼过程主要分为两个步骤：湖水晒盐和精制盐。
* 湖水晒盐是指将盐湖中的盐水引入盐田，经过太阳的照射和水的蒸发，使湖水中的盐分浓度逐渐增加，形成结晶的盐。游客带走的天然“盐湖盐”就是这种盐，又叫做粗盐，含有一定的杂质和水分，有些杂质可能对身体有害（比如磷酸盐等有害化学物质，贸然食用将会对人体造成不可逆转的伤害），还需要进一步精制。
* 精制盐是指将粗盐进行洗涤、干燥、碾磨、筛分等工艺，去除杂质和水分，提高盐的纯度和质量，使之符合食用标准。这种盐叫做细盐，是我们常见的食用盐。 盐湖虽美，远观即可 别把“纪念品”变成“健康隐患”
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Key Quotes
> Unrefined salt blocks may contain mild toxins.
> The salt in the scenic area may contain excessive minerals and cannot be eaten directly; it needs processing.
Tags
Travel Safety
Health Risks
Environmental Science Education
Salt Lake Scenic Area
Scientific Knowledge
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