Abstract：
:Fecal indicator bacteria like Escherichia coli and entercococci are monitored at beaches around the world to reduce incidence of recreational waterborne illness. Measurements are usually made weekly, but FIB concentrations can exhibit extreme variability, fluctuating at shorter periods. The result is that water quality has likely changed by the time data are provided to beachgoers. Here, we present an automated water quality prediction system (called the nowcast system) that is capable of providing daily predictions of water quality for numerous beaches. We created nowcast models for 10 California beaches using weather, oceanographic, and other environmental variables as input to tuned regression models to predict if FIB concentrations were above single sample water quality standards. Rainfall was used as a variable in nearly every model. The models were calibrated and validated using historical data. Subsequently, models were implemented during the 2017 swim season in collaboration with local beach managers. During the 2017 swim season, the median sensitivity of the nowcast models was 0.5 compared to 0 for the current method of using day-to-week old measurements to make beach posting decisions. Model specificity was also high (median of 0.87). During the implementation phase, nowcast models provided an average of 140 additional days per beach of updated water quality information to managers when water quality measurements were not made. The work presented herein emphasizes that a one-size-fits all approach to nowcast modeling, even when beaches are in close proximity, is infeasible. Flexibility in modeling approaches and adaptive responses to modeling and data challenges are required when implementing nowcast models for beach management.
journal_name
J Environ Managejournal_title
Journal of environmental managementauthors
Searcy RT,Taggart M,Gold M,Boehm ABdoi
10.1016/j.jenvman.2018.06.058subject
Has Abstractpub_date
2018-10-01 00:00:00pages
633-643eissn
0301-4797issn
1095-8630pii
S0301-4797(18)30710-2journal_volume
223pub_type
杂志文章abstract：:Beijing benefits from the promotion of electric vehicles (EVs) in the improvement of road tailpipe emissions; these emissions are caused by internal combustion engine vehicles (ICEVs) and reduce the surrounding environmental quality. When analyzing the electricity grid, upstream emissions of EVs in Beijing can be trac...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.111236
更新日期：2020-11-15 00:00:00
abstract：:This paper applies a structural equation model (SEM) to analyze the formation of awareness and perception of water scarcity, based on a cross-sectional dataset of 446 farmers in the Guanzhong Plain, Shaanxi Province, China. We find that age, percentage of time spent on farming and social network are the main determina...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2013.03.051
更新日期：2013-09-15 00:00:00
abstract：:In this study, long-term simultaneous nitrification denitrification (SND) and phosphorous removal were investigated in a continuous-flow microaerobic MBBR (mMBBR) operated at a dissolved oxygen (DO) concentration of 1.0 (±0.2) mg L-1. The mMBBR performance was evaluated at different feed carbon-to-nitrogen (C/N) ratio...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.109518
更新日期：2019-11-15 00:00:00
abstract：:Valorization of Fruit and Vegetable Wastes (FVW) is challenging owing to logistic-related problems, as well as to their perishable nature and heterogeneity, among other factors. In this work, the main existing routes for food waste valorization are critically reviewed. The study focuses on FVW because they constitute ...
journal_title：Journal of environmental management
pub_type： 杂志文章,评审
doi：10.1016/j.jenvman.2020.110510
更新日期：2020-07-01 00:00:00
abstract：:Road development in relatively undisturbed floodplain systems, such as the floodplains of the Mekong River, will impact hydraulics and interrupt the natural flow of water. This affects the ecology and environment, and the livelihoods of people who depend on fishing and agriculture. On the other hand, floods can severe...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2013.04.048
更新日期：2013-10-15 00:00:00
abstract：:The removal of Cr(Ⅵ) by chemical reduction-precipitation is widely applied in wastewater treatment plants. Nevertheless, the formation of Cr(OH)3 with gel properties has weak settlement performance, making it necessary to add a coagulant aid to reduce the settling time and improve the settling effect. In this investig...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2017.07.012
更新日期：2017-11-01 00:00:00
abstract：:The opinion, that the use of foil reactors for the aerobic biostabilization of municipal wastes is not a valid method, due to vulnerability to perforation, and risk of uncontrolled release of exhaust gasses, was verified. This study aimed to determine the intensity of greenhouse gas (GHG) emissions to the atmosphere f...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2017.11.054
更新日期：2018-02-01 00:00:00
abstract：:Two floodplains within the catchment of the River Adour (SW France) have been examined in order to analyse spatio-temporal variations in discharge and suspended matter flux. Both floodplain zones were found to be excellent sites for the interception of suspended sediment. The narrow riparian vegetative strips (RVS) wi...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2007.03.042
更新日期：2008-09-01 00:00:00
abstract：:Two related approaches to valuing nature have been advanced in past research including the study of ecosystem services and psychological investigations of the factors that shape behavior. Stronger integration of the insights that emerge from these two lines of enquiry can more effectively sustain ecosystems, economies...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2014.06.014
更新日期：2014-12-01 00:00:00
abstract：:Given the aim of maintaining global warming below 2 °C, carbon emission reduction has become a global top priority. Since the Belt and Road Initiative has increasing influence on manufacturing-oriented developing countries, more attention should be paid to carbon emission reduction in these regions. This study conduct...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.110250
更新日期：2020-05-15 00:00:00
abstract：:The management of dewatered wastewater sludge is a major issue worldwide. Sludge disposal to landfills is not sustainable and thus alternative treatment techniques are being sought. The objective of this work was to determine optimal mixing ratios of dewatered sludge with other organic amendments in order to maximize ...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2011.04.012
更新日期：2011-09-01 00:00:00
abstract：:A carbonaceous sorbent was prepared from peanut shell via sulphuric acid treatment. Se(IV) removal from aqueous solution on the sorbent was studied varying time, pH, Se(IV) concentration, temperature and sorbent status (wet and dry). Se(IV) removal was faster using the wet sorbent than the dry sorbent following a pseu...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2007.03.021
更新日期：2007-09-01 00:00:00
abstract：:Dimethachlon is a hazardous xenobiotic which poses a potential risk on the ecosystem and human health after foliar spray for mitigating fungal diseases of crops. A novel dimethachlon-degrading strain was isolated and identified as Brevundimonas naejangsanensis J3. Free cells and enzymes of this strain could rapidly el...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.109848
更新日期：2020-02-01 00:00:00
abstract：:The phosphate oxygen isotope (δ18OP) ratio has been proven to be an effective tool to trace the sources and biogeochemical cycles of phosphorus (P) in aquatic ecosystems. However, the enrichment of phosphate (PO4) and the removal of impurities are quite complex and easy to cause PO4 loss in current δ18OP analytical me...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.111618
更新日期：2021-02-01 00:00:00
abstract：:A batch test was used to evaluate the extent of desorption of diazinon and dimethoate, preadsorbed on a calcareous agricultural soil, representative of the Mediterranean area. Urban wastewater from a secondary treatment and seven surfactant solutions, at concentrations ranging from 0.75 mg L(-1) to 10 gL(-1), were use...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2010.09.025
更新日期：2012-03-01 00:00:00
abstract：:Land cover (LC) is one of the most important and easily detectable indicators of change in ecosystem services and livelihood support systems. This paper describes the decadal dynamics in LC changes at national and sub-national level in Bhutan derived by applying object-based image analysis (OBIA) techniques to 1990, 2...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2014.02.014
更新日期：2015-01-15 00:00:00
abstract：:Phosphorus (P) recovery from wastewater has been recognized as a critical technology for solving the sustainable supply of this indispensable and non - renewable natural resource. In this study, the cost - free magnesium and calcium sources of using the cooling water system effluent (CWSE) in two thermal power plants ...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2019.05.057
更新日期：2019-08-15 00:00:00
abstract：:Urban areas are considered net consumers of materials and energy, attracting these from the surrounding hinterland and other parts of the planet. The way these flows are transformed and returned to the environment by the city is important for addressing questions of sustainability and the effect of human behavior on t...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2014.01.054
更新日期：2014-08-01 00:00:00
abstract：:To use models of species distributions effectively in conservation planning, it is important to determine the predictive accuracy of such models. Extensive modelling of the distribution of vascular plant and vertebrate fauna species within north-east New South Wales has been undertaken by linking field survey data to ...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1006/jema.2001.0425
更新日期：2001-06-01 00:00:00
abstract：:This study used a relatively long-term (350 d) continuous flow test to determine the bioturbation effect of a benthic macroinvertebrate (the snail Bellamya aeruginosa) on sediment internal phosphorus (P) pollution control by in-situ immobilisation using drinking water treatment residue (DWTR) as the inactivating agent...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.110579
更新日期：2020-07-15 00:00:00
abstract：:The scope of this study was the use of bentonite as the carrier of ZnO nanoparticles for enhancing the sonocatalytic decolorization of Basic Red 46 (BR46) in the aqueous phase. The results demonstrated the higher sonocatalytic activity of bentonite-supported ZnO nanoparticles (BSZNs) in comparison with the suspended Z...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2016.05.001
更新日期：2016-09-01 00:00:00
abstract：:Lignocellulosic materials can be used as slow release electron donor (SRED) for biological sulfate reduction, potentially enhancing the subsequent metal sulfide precipitation. Lignocellulosic materials require a pre-treatment step in other biotechnological applications, but pre-treatment strategies for its use as a SR...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.111216
更新日期：2020-12-01 00:00:00
abstract：:Faecal pollution modelling is a valuable tool to evaluate and improve water management strategies, especially in a context of water scarcity. The reduction dynamics of five faecal indicator organisms (E. coli, spores of sulphite-reducing clostridia, somatic coliphages, GA17 bacteriophages and a human-specific Bifidoba...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.110220
更新日期：2020-05-01 00:00:00
abstract：:Degradation of oxytetracycline (OTC), a primary member of antibiotics in water, was performed by a gas phase dielectric barrier discharge (GPDBD) plasma reactor. The influences of operation conditions including applied voltages, air bubbling rates, initial OTC concentrations and initial pH values on OTC abatement were...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2018.08.022
更新日期：2018-11-15 00:00:00
abstract：:A sequencing batch reactor (SBR) with a working volume of 8 L and an exchange ratio of 25% was used to enrich biomass for the treatment of the anaerobically treated low pH palm oil mill effluent (POME). The influent concentration was stepwise increased from 5000 ± 500 mg COD/L to 11,500 ± 500 mg COD/L. The performance...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2014.07.023
更新日期：2014-12-15 00:00:00
abstract：:A novel yeast species Candida digboiensis TERI ASN6 was isolated from soil samples contaminated with acidic oily sludge (pH 1-3) from the Digboi refinery (Northeast India). The strain TERI ASN6 could degrade 73% of the total petroleum hydrocarbons present in the medium at pH 3 in a week. This strain presents a dimorph...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2008.11.026
更新日期：2009-04-01 00:00:00
abstract：:Biodecomposition of organic solid waste during composting process produces compost humic acid-like (cHAL), which is classified as biobased surfactant. The present study aimed to characterize the properties of cHAL substance which was formed during the composting process of crude oil contaminated soil, in terms of surf...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2018.08.010
更新日期：2018-11-01 00:00:00
abstract：:Improvement of sludge dewaterability is greatly hindered by the presence of large amounts of interstitial water molecules trapped in the sludge as a result of strong hydrophilic characteristics. This study has investigated the influence of six different polyacrylamide (PAM) flocculants with different molecular archite...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2018.12.067
更新日期：2019-03-01 00:00:00
abstract：:Soybean oil is widely used as cooking oil, whereas the soybean cake is a valuable ingredient for animal food. The extraction of soybean oil is an energy-intensive process, with additional significant impact on the environment via the wastewater and hexane emissions. The research investigated different ways to minimize...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2018.09.059
更新日期：2019-01-15 00:00:00
abstract：:The effects of pH, cation valence, and ionic strength (IS) on the stability and aggregation behavior of zinc oxide nanoparticles (ZnO NPs) were investigated in this study. Results showed that ZnO NPs were most prone to aggregation at the isoelectric point (pH = 8.7), with an aggregation rate (ΔD/Δt) of 30.1. ZnO NPs s...
journal_title：Journal of environmental management
pub_type： 杂志文章
doi：10.1016/j.jenvman.2020.110656
更新日期：2020-08-01 00:00:00
