Evaluation and Source Analysis of Heavy Metal Pollution in Grassland Soils under Different Management Modes in Altay, Xinjiang

Agronomy, Год журнала: 2023, Номер 13(10), С. 2621 - 2621

Опубликована: Окт. 16, 2023

In order to study the characteristics and sources of heavy metal pollution within different grassland soil categories in Altay, 147 samples were collected Fuyun County according type, contents seven metals (Cu, Pb, Cr, Zn, As, Ni, Cd) determined. The was evaluated using Nemerow geological accumulation index methods. absolute principal component score–multiple linear regression model (APCS-MLR) used analyze contribution rate sources. results showed that (1) content 0~10 cm mining area generally higher than remaining two layers. Natural most seriously contaminated, its contamination Zn > Pb Ni Cd Cu Cr As. (2) evaluation comprehensive main pollutants five types, method natural grasslands more polluted. (3) Three obtained analysis APCS-MLR model, including activity (32.6%), industrial coal combustion sewage (24.7%), an unknown source (42.7%). can provide a basis for control ecological protection Altay.

Язык: Английский

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Effects of Organic Manure on Wheat Yield and Accumulation of Heavy Metals in a Soil—Wheat System

Agronomy, Год журнала: 2024, Номер 14(9), С. 2143 - 2143

Опубликована: Сен. 20, 2024

The application of organic manure is an effective way to develop sustainable agriculture. However, the may be associated with a potential risk heavy metal pollution for soil and crops. In this study, effects cow (T1) (as base fertilizer), pig (T2) fertilizer) chemical fertilizer (T3) on winter wheat grain yields, quality, concentrations bioconcentration factors (BCFs) in soil–wheat system were studied from November 2021 June 2023. results showed that yields T1 T2 treatments lower than those T3 treatment by 2.57–38.0% 10.5–25%, respectively. There no significant differences quality indexes among different treatments. metals topsoil 0.12–76.11 μg/g 0.01–43.25 μg/g, BCFs mental was 0–2.92. general, there metals’ summary, compared fertilizer, short-term manures had effect wheat.

Язык: Английский

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Heavy Metals Contamination in Soil and Rice and their Removal Processes: A Brief Review

Geomicrobiology Journal, Год журнала: 2024, Номер 41(7), С. 721 - 731

Опубликована: Июль 1, 2024

In recent years, the increase in pollutants has caused environment to be exposed pollution. Heavy metals (HMs) carry irreparable risks due their accumulation and non-biodegradability. Soil contamination with HMs causes plants animals ultimately effects on human health. Due toxic nature of HMs, very trace amounts them can cause problems. Improper disposal waste, sewage, pesticides, automobiles, steelmaking activities, coal mines, thermal power are main sources emissions. Rice (Oryza sativa L.) is staple food most population many countries. Unfortunately, rice ability accumulate metals, hence if contaminated, it have a negative effect health quality life people. this study, soil been investigated. Also, some removal processes (physical, chemical, phytoremediation, microbial remediation) from

Язык: Английский

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Characteristics, spatiotemporal distribution, and risk assessment of Cu and Ni pollution in a farmland soil-corn system of arid oasis city in Northwest China

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Окт. 16, 2024

The rapid development of mining resources in the northwest oasis industrial and cities has brought many environmental problems. Previous research on heavy metals Northwest Oasis mainly focused soil-wheat system, lacking soil-corn system. As one main crops grown region, pollution corn grains is closely related to physical health people region. results show that average content Cu Ni soil study area were 124.00 mg kg^{− 1} 136.80 1, respectively, which are both higher than background value area. various varies among organs corn, contents highest tassel. spatial distribution characteristics have similarities may same source. Bio-concentration translocation factors plants > Ni. hazard quotient (HQ) children adults less 1, indicating no significant risks for children.

Язык: Английский

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Ecological and Health Risk Assessment of Metals in Organic and Conventional Peruvian Coffee from a Probabilistic Approach

Agronomy, Год журнала: 2024, Номер 14(12), С. 2817 - 2817

Опубликована: Ноя. 27, 2024

This study aims to understand the risks posed by metals in Peruvian coffee plantations human health and environmental integrity, ensuring protection of local communities ecosystems reliant on this agricultural activity. To assess contamination levels, arsenic (As), cadmium (Cd), chromium (Cr), nickel (Ni), lead (Pb) were surveyed soil, roots, parchment beans cultivated Amazonas San Martin regions, using both conventional organic cultivation. Results showed that As was metal with highest concentration soil (52.37 ± 21.16 mg/kg), roots (11.27 2.3 (10.19 1.69 followed Cr (22.36 11.47 mg/kg) (8.17 3.85 Pb (0.7 0.05 mg/kg). Cd only detected (1.70 1.73 The bioaccumulation (BAF) findings suggest have a low capacity accumulate As, Cd, Ni, Pb, but they potential Cr. translocation factor (TF) indicated all values less than one, except for from geo-accumulation index (Igeo) unpolluted Cr, polluted different extents Cd. Similarly, ecological risk (ER) pointed considered depending region cultivation system. Hazard (adults: 1.68 × 10−3, children: 9.26 10−3) cancer 1.84 10−7, 2.51 10−7) humans via ingestion, dermal contact, inhalation.

Язык: Английский

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The sodium alginate-synthesizing regulatory gene algB in Pseudomonas putida XMS-1 decreases Cd uptake in Allium tuberosum in the Cd-polluted soil

Journal of Environmental Sciences, Год журнала: 2024, Номер unknown

Опубликована: Дек. 1, 2024

Язык: Английский

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