ENVIRONMENTAL MONITORING AND ASSESSMENT
·
2025
·Vol. 198
·期 1
·18
·
IF 3
Pan Xiaopeng,Luo Huili,Xiang Yuhang,Li Zekun,Zhao Jia
Bisphenol A (BPA) and its analogues are toxicants that can disrupt the endocrine system. They have been detected in the soil and agricultural products. Bisphenol substitutes (BPs) are distributed throughout the agricultural water system; however, the current status of these BPs entering the soil from irrigation is unclear. In this study, the association of BPA, bisphenol S (BPS), and bisphenol F (BPF) in vegetable soils with irrigation water samples was analyzed. Their accumulation, migration, and influencing factors were explored through simulated irrigation and adsorption tests. Significant correlations ( P < 0.01) were observed, indicating that irrigation water was an important source of BPs in soil. Compared with BPS and BPF, BPA accumulated preferentially in the topsoil (10 cm) and continuously increased with irrigation, resulting in an interception ratio of up to 38.07%. Vertical seepage migration was in the order of BPS > BPF > BPA. Acidic soil (pH = 5), high organic matter content (> 32 mg/g), and micro-agglomerates (< 0.053 mm) promoted the adsorption of these BPs and reduced their migration. Understanding the migration of BPs in soil, particularly in a vertical direction, will assist in controlling their migration. It will also help reduce their accumulation, thereby lowering ecological risks.
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高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2024
·Vol. 31
·期 8
·11591-11604
·
IF 0
Lu Yuxi,Zeng Honghu,Lin Hua,Liang Yanpeng,Feng Mi,Zhou Zijian,Liang Zihao,Li Huawei,Chen Gongning
Since Cd(II) and As(III) have extremely opposite chemical characteristics, it is a huge challenging to simultaneously remove these two ions from aqueous solutions. Therefore, a novel iron sulfide-based porous biochar (FSB) was synthesized and used to evaluate its Cd(II) and As(III) removal performance and mechanisms. The characterization and batch experiments results indicated that FeS was successfully loaded on the surface of biochar and increased its adsorption sites. The iron sulfide-based porous biochar was very favorable for the removal of Cd(II) and As(III) in the weakly acidic environment. The maximum adsorption of Cd(II) and As(III) by FSB was 108.8 mg g −1 and 76.3 mg g −1 , respectively, according to the Langmuir and Freundlich isothermal adsorption model, and the adsorption equilibrium time was 12 h and 4 h, respectively, according to the pseudo-second-order kinetic model. In the coexisting ion system, Cd(II) adsorption was suppressed by Ca 2+ , Mg 2+ , and humic acid, but enhanced by PO 4 3− and As(III). As(III) adsorption was inhibited by PO 4 3− and humic acid. Precipitation and complexation are the predominant adsorption mechanisms of Cd(II) and As(III), which contribute to the formation of Cd-O, Fe-O-Cd, As-O, Fe-O-As, ternary complex Cd-Fe-As, and stable compounds FeAsO 4 ·2H 2 O and CdS. Therefore, The iron sulfide-based porous biochar can be an efficient and environmentally friendly candidate for the treatment of Cd(II) and As(III) co-polluted irrigation water.
研究领域:
环境科学
·
水处理
·
吸附技术
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材料科学
·
农业环境保护
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DOI
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Mohamed Mohamady Ghobashy,Mohamed A. Amin,Mohamed A. Ismail,Abdelatti I. Nowwar,Mahmoud A. El-diehy,H.M. Gayed
The study addresses the potential negative impacts of climate change on water resources, specifically irrigation water for crops. The radiation technique produces the biomaterial hydrogel as a soil conditioner by polymerizing hydroxy ethyl cellulose/acrylamide (HEC/AAm) at various irradiation doses and copolymer concentrations. A maximum swelling of 23.4 g/g is attained by (HEC/PAAm) hydrogel at 1/7.5 ratio, prepared by 10 kGy gamma irradiation. The study introduces a new class of ultra-absorbent hydrogel (UAH) to address the low swelling limitation for soil conditioner applications. The alkaline hydrolysis treatments with NaOH, LiOH, and KOH enhance the water absorbency of (HEC/PAAm) hydrogel, with the highest capacity of 1220 g/g achieved by the KOH treatment, surpassing NaOH (622 g/g) and LiOH (540 g/g). The cumulative release of fertilizers from the UAH sample shows a slow and controlled release behavior. Urea takes 22 days to reach 100 % release. The UAH demonstrates water retention for 28 days, improving the growth of Zea mays L. at drought stress levels of 0 %, 25 %, 50 %, and 100 %, revealing an increase in shoot length by 16 %, 19 %, 24 %, and 20 %, respectively. Also, UAH increased the contents of chlorophyll a , b, a + b, and carotenoid on maize plant leaves compared to the control sample.
研究领域:
农业科学
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材料科学
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高影响因子
SENSORS
·
2018
·Vol. 18
·期 5
·1595
·
IF 2.475
Guangyang Liu,Ruonan Zhang,Xiaodong Huang,Lingyun Li,Naixin Liu,Jing Wang,Donghui Xu
Various highly sensitive and selective analytical methods have been used to monitor metsulfuron-methyl residue in the environment. However, these methods involve costly instruments and complex, time-consuming operations performed in laboratories. Here, a rapid, convenient, and sensitive colorimetric sensor based on anti-aggregation of gold nanoparticles (AuNPs) is demonstrated for the rapid detection of metsulfuron-methyl in agricultural irrigation water. The AuNPs could be induced to aggregate in the presence of melamine and exhibited a distinct color change from wine-red to blue. The aggregation was suppressed by a strong hydrogen-bonding interaction between metsulfuron-methyl and melamine. The differences of the absorbance at 523 nm (ΔA523) and the color change was linearly related to metsulfuron-methyl concentration over the range 0.1–100 mg/L, as observed visually and by UV-vis (Ultraviolet-visible) spectrometry. The detection limit of the sensor was as low as 0.05 mg/L (signal/noise = 3), and was used to determine metsulfuron-methyl in spiked water and in agricultural irrigation water samples. Recoveries were in the range of 71.2–100.4%, suggesting that the colorimetric sensor was suitable for the determination of metsulfuron-methyl in agricultural water samples.Keywords:colorimetric sensor;gold nanoparticle;anti-aggregation;metsulfuron-methyl;melamine;agricultural irrigation water
研究领域:
环境科学
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分析化学
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高影响因子
Applied Sciences-Basel
·
2018
·Vol. 8
·期 6
·959
·
IF 1.689
Xiaodong Huang,Guangyang Liu,Donghui Xu,Xiaomin Xu,Lingyun Li,Shuning Zheng,Huan Lin,Haixiang Gao
Magnetic solid-phase extraction is an effective and convenient sample pretreatment technique that has received considerable interest in recent years. A lot of research indicated that magnetic nanocarbon-material-based composites have good application prospects as adsorbents for magnetic solid-phase extraction of pesticides. Herein, a novel zeolitic imidazolate framework based on magnetic multiwalled carbon nanotubes (M-M-ZIF-67) has been prepared as an adsorbent for magnetic solid-phase extraction of nine organochlorine pesticides from agricultural irrigation water samples. The obtained M-M-ZIF-67 material possessed porous surfaces and super-paramagnetism due to the utilization of magnetic multiwalled carbon nanotubes as the magnetic kernel and support. To evaluate the extraction performance of the M-M-ZIF-67, the main parameters that affected the extraction efficiency were researched. Under the optimal conditions, a good linearity for the nine organochlorine pesticides was achieved with the determination coefficients (R2) higher than 0.9916. The limits of detection (signal/noise = 3:1) were in the range 0.07–1.03 µg L−1. The recoveries of all analytes for the method at spiked levels of 10 and 100 µg L−1were 74.9–116.3% and 75.1–112.7%, respectively. The developed M-M-ZIF-67 based magnetic solid-phase extraction method has a potential application prospect for the monitoring of trace level of organochlorine pesticides in environmental water samples.Keywords:zeolitic imidazolate framework;multi-walled carbon nanotubes;magnetic solid phase extraction;organochlorine pesticides;agricultural irrigation water
研究领域:
环境科学
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材料科学
·
分析化学
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高影响因子
ENVIRONMENTAL POLLUTION
·
2023
·
IF 8.9
Fredrick Gudda,Emmanuel Stephen Odinga,Lei Tang,Michael Gatheru Waigi,Jian Wang,Dyaaaldin Abdalmegeed,Yanzheng Gao
Wastewater irrigation may introduce antibiotic residues in the soil-plant systems. This study aimed to investigate the uptake of tetracyclines by spinach and collard greens and assess associated ecological and human health risks. Synthetic wastewater spiked with 1 ppm and 10 ppm of oxytetracycline , doxycycline, and tetracycline was used to grow vegetables in a greenhouse pot experiment. The uptake and accumulation of the tetracyclines were low and residual concentrations in the soil were negligible. All the tetracyclines were detected at concentrations ranging from 1.68 to 51.41 μg/g (spinach) and 1.94–30.95 μg/g (collard greens). The accumulation rate was in a dose-response scenario with a bioconcentration factor of 6.34 mL/kg (spinach) and 2.64 mL/kg (collard greens). Oxytetracycline had the highest accumulation in leaves, followed by doxycycline and tetracycline, and the residual concentrations followed the same order. The highest residual concentration was in soils receiving 10 ppm oxytetracycline. Residual concentrations in the soil were lower than accumulated levels and exerted negligible ecological risks. Tetracyclines accumulation in spinach significantly differed between the vegetables demonstrating a subspecies difference in uptake and accumulation. Ecological risk quotient (RQ) and human health risk quotient (HQ) were below thresholds that would exert toxicity and resistance selection impacts. Although RQs and HQs are low (<0.1), this study shows that the vegetables accumulate tetracyclines from irrigation water, posing plausible human health risks to allergic individuals. Similarly, the ecological risks cannot be ignored because the synergistic and antagonistic effects of sublethal concentrations can perturb ecosystem processes.
研究领域:
环境科学
·
农业科学
·
毒理学
·
公共卫生
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高影响因子
MICROCHIMICA ACTA
·
2021
·Vol. 188
·期 12
·1-11
·
IF 5.833
Fan Fangbin,Lu Xiaofeng,Wang Shuai,Wang Licheng,Liang Xiaojing,Guo Yong
By introducing functional groups such as quaternary amine groups, sulfonic acid groups, triazine groups, and other mespore nanomaterials into the hydrogel, better separation effect of some organic framework materials has been obtained. Due to a reasonable design and preparation strategy, the hydrogel composite-modified silica can be used in the selective separation of various analytes such as pesticides, alkylbenzenes, polycyclic aromatic hydrocarbons, nucleosides/bases, benzoic acids, antibiotics, and carbohydrates. Through the exploration of chromatographic retention behavior, it is proved that the column can be used in mixed-mode liquid chromatography. The intra-day relative standard deviation for retention time of this new stationary phase is 0.12–0.16% ( n = 10), and the inter-day relative standard deviation is less than 0.39% ( n = 5). This new stationary phase can also be used for separation in complex samples. The limit of detection (LOD) for chlorotoluron in farm irrigation water is 0.21 µg/L and the linear range is 2–250 µg/L. After optimizing the chromatographic conditions, the highest efficiency of the hydrogel column in RPLC and HILIC modes has reached 32,400 plates/m (chlorobenzuron) and 41,300 plates/m (galactose). This new type of hydrogel composite is a porous network material with flexible functional design and simple preparation method and its application has been expanded in liquid chromatography separation successfully. Graphical abstract The hydrogel composed of triallyl cyanate cross-linking agent and 3-(2-(methacryloyloxy) ethyl) dimethylamine) propane-1-sulfonate (SBMA) monomer which were co-modified on the surface of mesoporous silica with MOF-919 for separation in mixed-mode liquid chromatography.
研究领域:
分析化学
·
材料科学
·
纳米技术
·
色谱学
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高影响因子
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