| 摘要: |
| 水体中的藻类可随着水汽界面破碎的气泡进入空气，并以气溶胶为载体在大气中传播。这不但是一种重要的藻类种群扩散方式，影响着周边水体的种群结构，同时空气中有害藻类的增多也会导致较大的健康风险，使空气富营养化加剧。目前，人们对于气载藻类的认知尚显不足，且主要见于国外文献报道。本文系统梳理了气载藻类在空气中的分布特征，包括它们的主要种群组成、季节性变化和昼夜变化模式，阐述了温度、湿度、风速等影响气载藻类生存和传播的环境因素，介绍了气溶胶中的有害藻类对人类健康的影响。最后，针对当前研究的不足之处，本文建议未来的研究应重点关注气载藻类的定殖动态，了解它们在空气中的存活和繁殖情况；汇源识别，确定气载藻类的主要来源与沉积区域；风险评估，预警气载藻类及藻毒素气溶胶对于人类健康的长期影响 |
| 关键词: 气溶胶藻类 藻毒素 传播方式 环境因子 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金项目（(32170546,31971476)） |
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| Airborne Propagation of Airborne Algae: Distribution Dynamics, Environmental Driving Factors and Health Risks |
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Wang Mansi, yang Zhen, Shi Xiaoli, Zhang Min
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Nanjing Institute of Geography & Limnology Chinese Academy of Sciences
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| Abstract: |
| Algae in aquatic ecosystems can enter the atmosphere through bubble bursting at the water-air interface and subsequently spread via aerosol transmission. This process not only represents a significant dispersal mechanism influencing algal population structures in adjacent water bodies but also elevates health risks through increased airborne harmful algae and exacerbates atmospheric nutrient enrichment. Current understanding of airborne algae remains limited, with existing research predominantly documented in international literature. This review systematically examines the distribution characteristics of airborne algae, encompassing dominant taxa, seasonal fluctuations, and diurnal variation patterns. It further elucidates key environmental determinants such as temperature, humidity, and wind speed that govern algal survival and atmospheric transport. Special attention is given to health implications arising from aerosolized harmful algae and cyanotoxins. To address existing knowledge gaps, future research should prioritize three critical domains: 1) Colonization dynamics investigating airborne algae viability and reproductive potential in atmospheric environments; 2) Source-sink identification to trace emission hotspots and deposition patterns; 3) Comprehensive risk assessment frameworks to evaluate long-term health impacts of algal aerosols and establish early warning systems. These proposed directions aim to advance fundamental understanding and inform evidence-based environmental management strategies |
| Key words: Aerosol algae, algal toxins, Transmission Modes, Environmental Factors |
