尽管切尔诺贝利发电站在2000年四台反应堆全部停运，但现场仍维持14天轮班制并执行多层安检，员工与科学人员通过“黄金走廊”及整套辐射门控系统进出，持续进行退役、监测和新科研。1986年4月26日4号机在安全试验中发生事故，反应堆芯暴露后向外释放了100多种放射性核素，四十年后该场址仍是核生物学、生态学与社会学研究的唯一长期实验室。

研究人员持续跟踪核素在湖泊、河流和地下水中的迁移，拉普捷夫和沃伊采霍夫发现饮用水对长期内部辐射总剂量贡献仅约10%，后续分析接近1%，而主要来源是食物，尤其是牛奶。当前健康风险主要集中在锶和铯；冷却池天然排空后，部分地区水体中锶含量上升并超过WHO饮用水标准，说明水文条件变化可显著改变风险趋势。

土壤、作物和微生物共同决定土壤到食物链的转移：泥炭和沙质土更易释放污染，燕麦更偏向吸收锶，豌豆更偏向吸收铯，因此可通过普鲁士蓝、施用石灰或矿质肥料、以及抑制型细菌接种来减量。即使大型动物群体（如狼、鹿、猞猁）总体回升且未见明显遗传劣化，辐射恐惧长期高于可量化后果；而2016年建成并按100年设计、耗资16亿美元的新安全罩在2025年2月2日被无人机击穿并烧毁内部超半层，增加了新的风险叠加。

Although all four reactors at Chernobyl were permanently shut down in 2000, the site still operates on 14-day shifts with multilayer checkpoints and radiation controls in the Golden Corridor, with workers and researchers continuing decommissioning, monitoring, and scientific work. On 26 April 1986, reactor 4 failed during a safety test, exposing its core to air and releasing more than 100 radionuclides, and forty years later the site remains a unique long-term laboratory for radiobiology, ecology, and social science.

Laptev and Voitsekhovych tracked radionuclides through lakes, rivers, and groundwater, and found drinking water contributed about 10%—possibly near 1%—of long-term internal dose, with food, especially milk, dominating exposure. Risk now centres on strontium and cesium; as cooling ponds drained after 2014, local water systems saw rising strontium concentrations that in places exceeded WHO drinking-water limits, showing how hydrological change can shift exposure trajectories.

Soil, crops, and microbes determine key transfer pathways: peat and sandy soils release contaminants more readily, oats accumulate more strontium, and peas more cesium, so mitigation includes Prussian Blue, soil liming or mineral fertilisation, and inoculation with inhibiting bacteria. While larger fauna such as wolves, deer, and lynx have generally rebounded without clear population-wide genetic collapse, public and policy fear remains above measurable impacts, and in February 2025 a drone strike burned through more than half the inner layer of the New Safe Confinement built in 2016 for US$1.6 billion with a nominal 100-year design life, adding another accident-derived risk.

Source: Scientists are still learning from the Chernobyl nuclear disaster

Subtitle: Their work should make future accidents less deadly

Dateline: 4月 23, 2026 05:01 上午 | CHERNOBYL NUCLEAR-POWER PLANT AND KYIV