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Polyester Microplastic Mitigated NH<sub>3</sub> Volatilization from a Rice–Wheat Rotation System: Does Particle Size or Natural Aging Effect Matter?

ACS Sustainable Chemistry & Engineering 2022 37 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Lanfang Han, Lanfang Han, Lanfang Han, Yuanyuan Feng, Yuanyuan Feng, Liying Chen, Yuanyuan Feng, Sen Chen, Yuanyuan Feng, Lanfang Han, Yuanyuan Feng, Liying Chen, Liying Chen, Liying Chen, Liying Chen, Lanfang Han, Lanfang Han, Lanfang Han, Lanfang Han, Yuanyuan Feng, Yuanyuan Feng, Yuanyuan Feng, Yanfang Feng, Yanfang Feng, Yanfang Feng, Liying Chen, Liying Chen, Liying Chen, Haijun Sun, Yuanyuan Feng, Yuanyuan Feng, Zhifeng Yang, Ke Sun, Lanfang Han, Ke Sun, Lanfang Han, Lanfang Han, Lanfang Han, Lanfang Han, Lanfang Han, Lanfang Han, Ke Sun, Ke Sun, Ke Sun, Ke Sun, Ke Sun, Lanfang Han, Lanfang Han, Lanfang Han, Lanfang Han, Lanfang Han, Lanfang Han, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Yuanyuan Feng, Haijun Sun, Haijun Sun, Yanfang Feng, Yanfang Feng, Sen Chen, Sen Chen, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Lanfang Han, Yuanyuan Feng, Lihong Xue, Ke Sun, Ke Sun, Yanfang Feng, Lanfang Han, Ke Sun, Yuanyuan Feng, Lanfang Han, Yuanyuan Feng, Yuanyuan Feng, Haijun Sun, Ke Sun, Liying Chen, Liying Chen, Liying Chen, Liying Chen, Yuanyuan Feng, Yanfang Feng, Zhifeng Yang, Ke Sun, Lanfang Han, Lanfang Han, Yuanyuan Feng, Yuanyuan Feng, Lanfang Han, Haijun Sun, Lihong Xue, Lihong Xue, Ke Sun, Haijun Sun, Zhifeng Yang, Yuanyuan Feng, Yanfang Feng, Ke Sun, Lanfang Han, Yuanyuan Feng, Haijun Sun, Ke Sun, Zhifeng Yang, Haijun Sun, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Lihong Xue, Yuanyuan Feng, Zhifeng Yang, Yanfang Feng, Yuanyuan Feng, Lihong Xue, Zhifeng Yang, Yuanyuan Feng, Zhifeng Yang, Zhifeng Yang, Lanfang Han, Yuanyuan Feng, Zhifeng Yang, Lanfang Han, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Yuanyuan Feng, Zhifeng Yang, Haijun Sun, Yanfang Feng, Lihong Xue, Lihong Xue, Lihong Xue, Zhifeng Yang, Yuanyuan Feng, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Ke Sun, Yanfang Feng, Ke Sun, Zhifeng Yang, Zhifeng Yang, Yanfang Feng, Yanfang Feng, Zhifeng Yang, Zhifeng Yang, Yanfang Feng, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Yanfang Feng, Yanfang Feng, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Ke Sun, Zhifeng Yang, Zhifeng Yang, Yanfang Feng, Ke Sun Ke Sun, Yanfang Feng, Ke Sun, Ke Sun Lanfang Han, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Zhifeng Yang, Yanfang Feng, Zhifeng Yang, Lanfang Han, Lihong Xue, Ke Sun

Summary

Researchers found that polyester microplastics of both 10 and 200 micrometer sizes significantly reduced ammonia volatilization in a rice-wheat rotation soil system, with smaller particles showing greater mitigation effects. The study also examined the role of natural aging on this effect, revealing that microplastic particle size and weathering state both influence nitrogen cycling in agricultural soils.

Polymers

PE PET

Microplastics (MPs) accumulation in agricultural soils has shown serious implications for soil ecosystem functions. Ammonia (NH3) volatilization is a major pathway of nitrogen loss in agricultural systems, while its response mechanism to MPs occurrence, particularly the role of MPs size and natural aging, has been scarcely explored. In this study, polyethylene terephthalate of sizes of 10 μm (PET10) and 200 μm (PET200) were selected in a rice–wheat rotation cycle soil system. Results showed that PET10 and PET200 reduced soil NH3 volatilization cumulative amount from 58.9 to 18.6–40.3 kg N/ha and yield-scaled loss from 2.95 to 0.92–1.60 kg/t grain. Reduction of NH3 volatilization occurred in both the rice growth season and the subsequent wheat growth season, in which two MPs were aged in the initial rice season, with verification by 2.8 wt % more bulk oxygen of PET200 separated from the soil after rice harvest. Moreover, PET200 treatment showed 7.7–25.9% less cumulative NH3 volatilization than PET10, which was significant in the rice growth season. This was partially related to the higher adsorption capacity (10.6 mg/g) for free NH4+–N of PET200 and 5.2% more microaggregate (<250 μm) formation in PET200 treatment. These findings provide references for the assessment of MPs effects on soil nitrogen biogeochemical cycling.

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