孕激素作为土壤中新出现的污染物:对其污染特征和生态风险的调查
Qianwen Jiao1, Zhenzhen Xu1, Yuzhen Liu1
1College of Geography and Environment, Shandong Normal University, Jinan 250014, China.
Environmental research
|January 24, 2026
概括
自然孕激素 (PGs) 在中国的土壤污染中占主导地位,对陆地生命构成潜在风险. 了解这些PG的理解
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 分析化学 分析化学
背景情况:
- 孕激素 (PGs) 是重要的内分泌干扰药物,在雌激素之后,人们越来越担心.
- 虽然已经研究了水生PG,但土壤PG在度,分布和风险方面仍未得到充分研究.
- 这项研究解决了农业土壤环境中多个PG的知识差距.
研究的目的:
- 调查土壤中55种天然和合成PG的度,分布,潜在驱动因素和环境风险.
- 为了确定主导的PG化合物及其对整体孕激素活性的贡献.
- 为优化施肥方法提供数据,以减轻农田系统中的PG污染.
主要方法:
- 在中国山东省土壤样本中分析了55种天然和合成孕激素.
- 使用先进的分析技术检测和量化PG.
- 相关性分析以确定PG发生和分布的潜在驱动因素.
- 对陆地生物的查级风险评估.
主要成果:
- 检测到34个PG,其度从未检测到49ng/g不等.
- 以前被忽视的天然PG被发现是占主导地位的,比合成PG更高的度 (0.68-196 ng/g) 和检测频率 (>70%).
- 畜牧业 (牛,猪,家禽) 和人类人口密度与PG发生相关.
- 三种合成PG (gestodene,progesterone,19-norethindrone) 显著 (36%-100%) 促进了孕激素的活性.
- 查级别的风险评估表明,对陆地生物的风险中等至高.
结论:
- 自然的孕激素是中国农业土壤中的重要污染物.
- 牲畜和人类人口是土壤PG污染的关键驱动因素.
- 土壤PG对陆地生态系统构成潜在风险,需要有针对性的缓解策略.
相关概念视频
Ecological Succession
21.4K
Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...
21.4K
Ecological Disturbance
20.8K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
20.8K
The Soil Ecosystem
24.6K
Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:
24.6K
Ecological Niches
26.1K
All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
26.1K
Emerging Adulthood
653
Jeffrey Arnett's concept of emerging adulthood offers a framework to understand the unique developmental stage between adolescence and full-fledged adulthood, generally from ages 18 to 25. This period is marked by extensive exploration and shifts in identity, relationships, and career choices, a process known in psychology as role experimentation. Emerging adulthood reflects the evolving cultural expectations surrounding adulthood and the dynamic process of personal transformation during...
653
Contaminants and Errors
354
Effective sample preparation is crucial for accurate and reliable laboratory analysis. During this process, two significant sources of error can arise: concentration bias from improper sample splitting and contamination caused by methods used to reduce particle size, such as grinding or homogenization. Identifying and minimizing these potential errors is crucial to ensuring the validity of the analysis.
Another key consideration is determining the appropriate number of samples required to...
Another key consideration is determining the appropriate number of samples required to...
354


