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夺命“化骨水”,在这些地方很常见! 南都新知
Nan Fang Du Shi Bao· 2025-09-18 03:20
Core Viewpoint - The recent incident involving a woman's death due to accidental exposure to hydrofluoric acid has raised significant concerns about the dangers associated with this chemical, often referred to as "bone water" due to its severe corrosive properties [1][8]. Group 1: Properties and Applications of Hydrofluoric Acid - Hydrofluoric acid (HF) is a colorless, corrosive liquid that is more dangerous than strong acids like sulfuric and hydrochloric acid, capable of dissolving metals, glass, and silicon-containing materials [4][8]. - It is widely used in various industrial applications, including the production of fluorides, fluoropolymers, and in semiconductor manufacturing for etching and cleaning chips [4][5]. - In the medical field, hydrofluoric acid is utilized in dentistry to prepare porcelain teeth for bonding [4]. Group 2: Risks and Health Hazards - Hydrofluoric acid poses severe health risks due to its strong corrosive and permeative properties, which can penetrate skin and damage bones, leading to systemic toxicity [8][12]. - Initial exposure may result in mild symptoms, but significant damage can occur within hours, including severe pain, tissue necrosis, and potential organ failure [9][12]. - Inhalation of hydrofluoric acid fumes can also be life-threatening, causing respiratory distress and potentially leading to death [12]. Group 3: Safety Measures and Emergency Response - Workers handling hydrofluoric acid must undergo specialized safety training and use appropriate protective equipment, including goggles, gloves, and protective clothing [13]. - In case of exposure, immediate action is critical: remove contaminated clothing, rinse the affected area with water for at least 15 minutes, and seek medical attention promptly [14].
日本,永远活在20年前的老人经济
虎嗅APP· 2025-06-21 08:58
Core Viewpoint - Japan is gradually shifting its national policy from a manufacturing-centric economy to a combination of manufacturing and tourism, with a significant increase in tourism from China, particularly from the Jiangsu, Zhejiang, and Shanghai regions [3][4]. Group 1: Aging Population and Labor Market - The aging population in Japan is evident, with many service sectors, including taxi drivers, being predominantly staffed by individuals over 60 years old [5][9]. - In 2023, 384 fatalities were reported among drivers aged 75 and above, highlighting the risks associated with an aging workforce [8]. - Over 30% of Japanese companies have abolished retirement age policies, allowing older individuals to remain in the workforce, which helps mitigate labor shortages [12]. Group 2: Economic Implications of Aging - The elderly population in Japan is projected to grow, with 36.25 million individuals aged 65 and above by 2024, accounting for 29.3% of the total population [15][16]. - The elderly contribute to the economy by continuing to work, which alleviates the burden on social security systems [19]. - There is a growing market for products tailored to the elderly, including specialized household items and medical supplies, driven by the large elderly demographic [22][23]. Group 3: Unique Market Trends - Japan's "Galapagosization" phenomenon refers to the unique evolution of products and services tailored to the elderly, which may lag behind global technological trends [31]. - The market for elderly products includes items like electric beds and adult diapers, which have seen increased demand, sometimes surpassing that of baby products [29][30]. - The elderly consumer market is characterized by a preference for traditional products and services, which can slow down innovation but also create niche markets [19][20]. Group 4: Government Response and Community Planning - The Japanese government is focusing on enhancing the quality of life for the elderly through community planning and the establishment of age-friendly environments [33]. - Initiatives include building senior living communities and promoting policies that support the elderly's continued participation in the workforce [33].
香港统计处:2月至4月香港经季节性调整失业率为3.4% 就业不足率上升至1.3%
Zhi Tong Cai Jing· 2025-05-20 09:29
Group 1 - The seasonally adjusted unemployment rate in Hong Kong increased from 3.2% in January-March 2025 to 3.4% in February-April 2025, while the underemployment rate rose from 1.1% to 1.3% during the same period [1][2] - The total employment decreased by approximately 15,600 from 3,692,700 in January-March 2025 to 3,677,100 in February-April 2025, and the total labor force also fell by about 9,000 from 3,815,500 to 3,806,500 [1][2] - The number of unemployed individuals (not seasonally adjusted) rose from 122,800 to 129,400, an increase of about 6,600, while the number of underemployed individuals increased from 42,700 to 47,600, an increase of approximately 4,900 [2] Group 2 - Various major economic sectors experienced an increase in unemployment rates, particularly in construction, accommodation services, catering services, and finance, while sectors like information and communications, insurance, and arts, entertainment, and recreation saw a decline [1] - The Secretary for Labour and Welfare, Sun Yuhan, noted that while some businesses are closing, many new stores are opening, indicating a shift in demand and consumption trends [2] - The number of registered companies in Hong Kong reached a historical high of 1.46 million by the end of last year, suggesting emerging demand and consumption trends are gradually taking shape [2]