Variations of methane fluxes and methane microbial community composition with soil depth in the riparian buffer zone of a sponge city park

Journal of Environmental Management, Год журнала: 2023, Номер 339, С. 117823 - 117823

Опубликована: Апрель 5, 2023

Язык: Английский

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Using Machine Learning to Improve Performance of a Low-Cost Real-Time Stormwater Control Measure

Опубликована: Ноя. 29, 2022

The alteration of natural land cover to impervious surfaces during development increases stormwater runoff. Stormwater Control Measures (SCMs) are used manage water quantity and enhance quality by restoring the hydrologic cycle altered development. Often, SCMs have an outflow pipe handle overflows or release detained when infiltration is not possible. Traditionally, these static controls (e.g. a small orifice restrict volume outflow), however, systems can be improved instituting real-time (RTC). RTC improve functionality dynamically controlling outflows adjust environmental conditions. A major impediment widespread implementation high cost installation operation. This study utilized machine learning methods develop forecasting approach for low-cost that were implemented on programmable gate outlet structure multi-stage basin in southeastern Pennsylvania. goals decrease peak flow exiting rain events, increase detained, number overtopping maintain healthy vegetation basin, protect downstream from erosion. Multiple popular data science algorithms evaluated including multiple linear regression long short-term memory. These with dataset, which consisted four years historical sensor data, collected 5-minute intervals, train models predict levels optimize operations. accuracy 30 three different handling missing values compared. memory model configured 30-minute lead time produced best results. Having approximate same lag minutes contributing drainage area SCM provided sufficient functioning period performance structure.

Язык: Английский

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Urban mining: Phytoextraction of noble and rare earth elements from urban soils

Archives of Environmental Protection, Год журнала: 2023, Номер unknown

Опубликована: Апрель 1, 2023

The increasing demand for noble metals boosts their price.In order to meet the elements, a number of technologies are being developed recover elements already present in environment.Traffic-related metal pollution is serious worldwide concern.Roadside soils constantly subjected deposition released by tailpipe gases, vehicle parts, and road infrastructure components.These metals, especially platinum group from catalytic converters, accumulating soil pose risk both agricultural residential areas.Phytomining suggested as novel technology obtain plants grown on contaminated soil, rock, or mine wastes.Interest this method growing interest recovery rare also increasing.Based research many authors, sources amounts that accumulate along communication routes have been presented.The paper presents can be used phytomining.

Язык: Английский

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Accumulation and contamination of gully pot sediments from varied land-use types: metal loads, concentrations and speciation

Environmental Science and Pollution Research, Год журнала: 2023, Номер 30(50), С. 109825 - 109840

Опубликована: Сен. 30, 2023

Urban stormwater typically enters sewer networks through gully pots, which allow a primary sedimentation of solids upstream the piped network. The regular removal and disposal retained sediment are necessary, costly can involve environmental risks due to contamination sediments with substances from urban environment such as metals. concentrations speciation Cd, Cr, Cu, Ni, Pb Zn were analysed in 26 pots located different land use areas Stockholm, Sweden. In addition, accumulation rates both metal masses evaluated, providing basis for optimising maintenance practices better understanding impacts characteristic types. Metal varied by at most factor eight between samples always below Swedish polluted site guidelines less sensitive use, only exceeding guideline values Cu use. Sequential extraction showed be mobile Sediment 0.003 0.197 kg/m2 impermeable surface/year. much more variable than concentrations, up 172 highest lowest corresponding lower range mass loads road runoff. Differences or accumulations could not solely attributed either traffic catchment contrast, traction grit used winter maintenance, has low (but detectable) is identified major component pot sediments, combined effect moderating contributing total mass.

Язык: Английский

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Occurrence and Concentration of 6 Metals and 28 Organic Micropollutants in the Forebays of Bioretention Facilities

Journal of Sustainable Water in the Built Environment, Год журнала: 2024, Номер 11(1)

Опубликована: Ноя. 26, 2024

Язык: Английский

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