室内氡气暴露被列为肺癌重要诱因的机制是什么？
What is the mechanism by which indoor radon exposure became recognized as a major lung-cancer risk?
氡是土壤岩石中铀衰变产生的放射性气体，在通风不良的室内累积，其衰变产物 α 粒子可损伤肺上皮 DNA。世界卫生组织将其列为继吸烟后肺癌的第二大诱因，防控以加强通风与建筑防潮为主。
Radon is a radioactive gas from uranium decay in soil and rock that accumulates in poorly ventilated homes; its decay products emit alpha particles that damage lung epithelial DNA. WHO ranks it the second leading lung-cancer cause after smoking, controlled mainly by ventilation and moisture-proofing.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#室内氡 #肺癌 #放射性
环境健康暴露评估通常从哪几个要素量化人群接触水平？
What elements does environmental health exposure assessment use to quantify population contact?
暴露评估围绕暴露途径（吸入、食入、皮肤接触）、暴露剂量与暴露时长三个要素，结合环境监测与个体活动模式估算内剂量。不确定性主要来自时空变异性与行为参数，常需蒙特卡洛模拟量化。
Exposure assessment quantifies contact via exposure route (inhalation, ingestion, dermal), dose and duration, combining environmental monitoring with activity patterns to estimate internal dose. Uncertainty stems mainly from spatiotemporal variability and behavioral parameters, often addressed with Monte Carlo simulation.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录仅给书名，无版次与年份；同一书名常对应多个版次，不臆测具体版本。
《环境科学》环境暴露评估方法论文
Environmental Science journal — exposure assessment methods article
#暴露评估 #暴露途径 #内剂量
双酚A 作为环境内分泌干扰物可能通过什么途径影响人体内分泌系统？
Through what pathways might bisphenol A, as an endocrine disruptor, affect the human endocrine system?
双酚A 可模拟雌激素与雌激素受体结合，干扰激素信号通路，动物实验提示其与生殖发育与代谢异常相关。其广泛存在于塑料食品容器与热敏纸，经饮食与皮肤接触进入人体。
BPA mimics estrogen and binds estrogen receptors, disturbing hormonal signaling; animal studies link it to reproductive-developmental and metabolic disruption. It is widespread in plastic food containers and thermal paper and enters the body via diet and skin contact.
难度 进阶 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#双酚A #内分泌干扰物 #雌激素
PM2.5 对人体健康的主要危害机制是什么？
What are the main mechanisms by which PM2.5 harms human health?
细颗粒物可深入肺泡并进入血液循环，诱发氧化应激、炎症与血管内皮损伤，增加心肺疾病与卒中风险。长期暴露与肺癌及儿童呼吸系统发育不良相关。
Fine particles penetrate deep into alveoli and enter the bloodstream, triggering oxidative stress, inflammation and endothelial injury that raise risks of cardiopulmonary disease and stroke. Long-term exposure is linked to lung cancer and impaired child respiratory development.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#PM2.5 #心肺疾病 #氧化应激
热浪对健康的影响为何在老年人与慢性病患者中更突出？
Why do heatwaves affect the elderly and people with chronic disease more severely?
这两类人群体温调节能力弱、常服药影响排汗与心血管代偿，易在热浪下发生中暑、心衰与肾损伤。城市热岛与独居进一步放大风险，提示需有针对性的高温预警与社区照护。
These groups have weaker thermoregulation and often take medications that impair sweating and cardiovascular compensation, raising risks of heatstroke, heart failure and kidney injury during heatwaves. Urban heat islands and social isolation amplify risk, calling for targeted warnings and community care.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
G. Tyler Miller,《Living in the Environment》Cengage 多版
G. T. Miller, Living in the Environment, Cengage Learning, various editions
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL66394W：Living in the environment
#热浪 #脆弱人群 #体温调节
儿童为何对铅暴露尤为敏感，其健康后果有哪些？
Why are children especially sensitive to lead exposure and what are the consequences?
儿童血脑屏障未完善且单位体重摄入更高，铅可干扰神经发育导致认知与行为损伤，且损害多不可逆。即使低血铅水平也与智商下降相关，因而许多国家持续下调行动阈值。
Children have an immature blood–brain barrier and higher intake per body weight, so lead disrupts neurodevelopment causing cognitive and behavioral deficits that are largely irreversible. Even low blood-lead levels correlate with reduced IQ, prompting many countries to lower action thresholds.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#铅暴露 #神经发育 #儿童健康
微塑料可通过哪些主要途径进入人体？
Through what main pathways can microplastics enter the human body?
微塑料经受污染的食物（尤其是海鲜与瓶装水）、饮水以及吸入大气沉降颗粒进入人体，粒径越小越易穿越生物膜。目前对人体健康的具体剂量—效应关系仍缺乏充分证据。
Microplastics enter the body via contaminated food—especially seafood and bottled water—drinking water and inhaled atmospheric particles, with smaller sizes crossing biological membranes more easily. Concrete dose–response relationships for human health remain poorly evidenced.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#微塑料 #人体暴露 #食物链
地面臭氧是如何形成的，它对呼吸健康有何影响？
How does ground-level ozone form and how does it affect respiratory health?
地面臭氧由氮氧化物与挥发性有机物在阳光照射下经光化学反应生成，属二次污染物。它刺激呼吸道、降低肺功能并加重哮喘，高浓度时增加急诊与死亡风险。
Ground-level ozone forms when nitrogen oxides and volatile organic compounds react photochemically in sunlight—a secondary pollutant. It irritates airways, lowers lung function and worsens asthma, raising emergency visits and mortality at high concentrations.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#地面臭氧 #光化学 #呼吸健康
长期处在很吵的环境会怎样影响健康？
How does living in constant loud noise affect health?
长期噪声会让人睡不好、心烦、血压升高，对小孩学习和老人心脏都不好。给房间加厚窗帘、关窗、戴耳塞，都是在给耳朵“放假”。
Chronic noise ruins sleep, raises stress and blood pressure, hurting children's learning and elders' hearts. Thick curtains, closed windows and earplugs give your ears a 'break'.
难度 入门 · 适合 小学低段(6-8)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
左玉辉 主编,《环境学》第2版,高等教育出版社,2009
Zuo Yuhui ed., Environmental Science, 2nd ed., Higher Education Press, 2009
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787040283327（按标识回读: 环境学）
#噪声 #睡眠 #健康