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研究:婴幼儿床垫释放毒性物质 或影响大脑与激素发育

新研究发现,婴幼儿床垫及床上用品在孩子熟睡期间可能释放多种有毒物质,包括阻燃剂和邻苯二甲酸酯等,这些化学物与发育障碍和激素紊乱密切相关。

美国有线电视新闻网(CNN)报道,多伦多大学研究团队在25间婴幼儿卧室中采集空气样本,检测出超过20种邻苯二甲酸酯、阻燃剂和紫外线吸收剂,浓度在床铺附近尤为明显。后续检测的16张新床垫证实,这些产品是主要污染源,且模拟实验显示,儿童的体温与体重会加速有毒物质释放。

这项发表在《环境科学与技术》(Environmental Science & Technology)期刊上研究所检测的床垫为加拿大购入的知名平价品牌,原料来自美国和墨西哥,因此研究结果可能适用于整个北美市场。

研究显示,部分样品中的致癌物TDCPP含量高达1700ppm,甚至有标示“安全认证”的产品检测出1800ppm的五氯硫酚(PCTP),这类物质已被美加两国禁用于儿童产品。

研究资深作者、多伦多大学地球科学系教授戴蒙德(Miriam Diamond)说:“研究结果表明,家长难以通过挑选品牌、材质或价格规避风险。有些产品即使标榜合规,仍含超标化学物。”

邻苯二甲酸酯常见于食品包装、化妆品与儿童玩具中,长期接触会干扰激素系统,影响生殖与发育。研究指出,即便微量暴露,也可能对儿童快速发育的大脑与身体造成不可逆伤害,相关健康问题包括男婴生殖器畸形、成年男性睾酮水平下降、肥胖、哮喘、心血管疾病、癌症甚至早逝风险。

...

#研究 #儿童 #婴儿



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研究:婴幼儿床垫释放毒性物质 或影响大脑与激素发育

新研究发现,婴幼儿床垫及床上用品在孩子熟睡期间可能释放多种有毒物质,包括阻燃剂和邻苯二甲酸酯等,这些化学物与发育障碍和激素紊乱密切相关。

美国有线电视新闻网(CNN)报道,多伦多大学研究团队在25间婴幼儿卧室中采集空气样本,检测出超过20种邻苯二甲酸酯、阻燃剂和紫外线吸收剂,浓度在床铺附近尤为明显。后续检测的16张新床垫证实,这些产品是主要污染源,且模拟实验显示,儿童的体温与体重会加速有毒物质释放。

这项发表在《环境科学与技术》(Environmental Science & Technology)期刊上研究所检测的床垫为加拿大购入的知名平价品牌,原料来自美国和墨西哥,因此研究结果可能适用于整个北美市场。

研究显示,部分样品中的致癌物TDCPP含量高达1700ppm,甚至有标示“安全认证”的产品检测出1800ppm的五氯硫酚(PCTP),这类物质已被美加两国禁用于儿童产品。

研究资深作者、多伦多大学地球科学系教授戴蒙德(Miriam Diamond)说:“研究结果表明,家长难以通过挑选品牌、材质或价格规避风险。有些产品即使标榜合规,仍含超标化学物。”

邻苯二甲酸酯常见于食品包装、化妆品与儿童玩具中,长期接触会干扰激素系统,影响生殖与发育。研究指出,即便微量暴露,也可能对儿童快速发育的大脑与身体造成不可逆伤害,相关健康问题包括男婴生殖器畸形、成年男性睾酮水平下降、肥胖、哮喘、心血管疾病、癌症甚至早逝风险。

...

#研究 #儿童 #婴儿

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Telegram hopes to raise $1bn with a convertible bond private placement

The super secure UAE-based Telegram messenger service, developed by Russian-born software icon Pavel Durov, is looking to raise $1bn through a bond placement to a limited number of investors from Russia, Europe, Asia and the Middle East, the Kommersant daily reported citing unnamed sources on February 18, 2021.The issue reportedly comprises exchange bonds that could be converted into equity in the messaging service that is currently 100% owned by Durov and his brother Nikolai.Kommersant reports that the price of the conversion would be at a 10% discount to a potential IPO should it happen within five years.The minimum bond placement is said to be set at $50mn, but could be lowered to $10mn. Five-year bonds could carry an annual coupon of 7-8%.

The global forecast for the Asian markets is murky following recent volatility, with crude oil prices providing support in what has been an otherwise tough month. The European markets were down and the U.S. bourses were mixed and flat and the Asian markets figure to split the difference.The TSE finished modestly lower on Friday following losses from the financial shares and property stocks.For the day, the index sank 15.09 points or 0.49 percent to finish at 3,061.35 after trading between 3,057.84 and 3,089.78. Volume was 1.39 billion shares worth 1.30 billion Singapore dollars. There were 285 decliners and 184 gainers.

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