Evaluation of stormwater and snowmelt inputs, land use and seasonality on nutrient dynamics in the watersheds of Hamilton Harbour, Ontario, Canada

Long, Tanya; Wellen, Christopher; Arhonditsis, George B.; Boyd, Duncan

doi:10.1016/j.jglr.2014.09.017

Cited by 41 publications

(21 citation statements)

References 47 publications

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“…Factors hypothesized to be contributing towards the sinusodial seasonal relationship include local ecological and/or hydrological processes as described in Long et al (2014). The temporal TP concentration trends observed in this study are believed to be representative of long-term seasonal TP concentration trends at the Desjardins Canal.…”

Section: To 2012 Annual Average Tp Load Estimatesmentioning

confidence: 62%

“…The monitoring station setup as well as sample collection, retrieval, and processing are described in detail in Long et al (2014) but are described briefly below. The core of each monitoring station was a Teledyne ISCO (Model 6712) automatic water sampler equipped with a water level bubbler module (Model 730) as well as power and telephone connections to permit remote programming and data downloads.…”

Section: Overview Of Study Areamentioning

confidence: 99%

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Estimation of tributary total phosphorus loads to Hamilton Harbour, Ontario, Canada, using a series of regression equations

Long

Wellen

Arhonditsis

et al. 2015

Journal of Great Lakes Research

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Section: To 2012 Annual Average Tp Load Estimatesmentioning

confidence: 62%

Section: Overview Of Study Areamentioning

confidence: 99%

Estimation of tributary total phosphorus loads to Hamilton Harbour, Ontario, Canada, using a series of regression equations

Long

Wellen

Arhonditsis

et al. 2015

Journal of Great Lakes Research

Self Cite

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“…Total phosphorus and other nutrient loading contributes to eutrophication problems which have been studied in depth throughout Ontario (Phosphorus et al 1981) (Winter and Duthie 2000) (Eyles, Meriano, and Chow-Fraser 2013) (Long et al 2014) (Kim et al 2016). Kim et al 2016 studied the relationship between total phosphorous and watershed attributes such as land use cover and physiographic characteristics to better understand how these parameters impact concentrations in the Bay of Quinte watershed.…”

Section: Water Quality Objective Criteria Targets and Thresholdsmentioning

confidence: 99%

Enabling Multi-Site Stormwater Environmental Compliance Approvals in Ontario, Canada

Orchard¹

2021

Preprint

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In attempt to improve stormwater management and compliance the Ministry of Environment Conservation and Parks (MECP) has proposed a multi-site Environmental Compliance Approval (ECA) system for managing stormwater compliance at the subwatershed level. This research focuses on the identification and selection of stormwater objectives, criteria, targets, and thresholds to be included as part of the approval. This research also identifies and recommends traditional and alternative monitoring techniques for inclusion in a multi-site permit. Recommendations are provided for database architecture including storage, manipulation, and viewing of monitoring data. The selected stormwater objectives, criteria, targets, thresholds, monitoring techniques, and frequencies were compiled in a multi-site stormwater ECA framework to assist with the MECP with the implementation of multi-site stormwater ECAs within Ontario. The framework serves as an overview of important parameters that can be effectively monitored within a multi-site stormwater ECA.

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“…Given the water retention time of over 150 days in R2 (Table 1), it is likely that a proportion of the measured MeHg in R1 in August (about 70 days later) was produced during the last winter, as water turnover upon ice-melt can mobilize MeHg produced at the sediment-water interface to the surface waters (Long et al, 2014). However, upstream MeHg is probably not the only source in R1 because while pCO 2 is higher in bays in August (Figure 4), it is more likely that these high pCO 2 are sustained by biological processing in the bays because the high gas exchange coefficients in these large systems would have evaded the CO 2 coming from R2 along the way (Rust et al, in preparation).…”

Section: The Importance Of Connectivity and Winter Processesmentioning

confidence: 99%

Mobilization and Transformation of Mercury Across a Dammed Boreal River Are Linked to Carbon Processing and Hydrology

Bonville

Amyot

Giorgio

et al. 2020

Water Resources Research

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Reservoirs are known to accelerate the mobilization and cycling of mercury and carbon as a result of flooding of terrestrial organic matter, which can lead to environmental concerns at local and broader spatial scales. We explored the covariation of mercury (Hg) and carbon (C) functional pools in natural and recently dammed portions of the aquatic network of the Romaine River watershed in Northern Quebec, Canada, to understand how the fate of these elements varies across systems with contrasting hydrology and environmental conditions. We found that total Hg (THg) concentrations in surface waters were relatively constant along the network, whereas both the concentrations and proportions of MeHg tended to increase in reservoirs compared to surrounding nonflooded systems, and along the cascade of reservoirs. Whereas THg was related to total and terrestrial pools of dissolved organic carbon (DOC), MeHg was weakly related to DOC but strongly linked to surface concentrations of CO 2 , as well as to concentrations of iron and manganese. The latter are proxies of cumulative organic matter processing within the network, presumably in anoxic portions of shallow bays, deep reservoir waters, and river sediments, as well as in prior seasons (e.g., under ice). Our results suggest that these deep boreal reservoirs acted more as transformation sites for Hg that was already present than as mobilizers of new Hg, and that under ice metabolism plays a role in MeHg production in these systems as we found strong dichotomies in MeHg patterns between spring and summer.

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Evaluation of stormwater and snowmelt inputs, land use and seasonality on nutrient dynamics in the watersheds of Hamilton Harbour, Ontario, Canada

Cited by 41 publications

References 47 publications

Estimation of tributary total phosphorus loads to Hamilton Harbour, Ontario, Canada, using a series of regression equations

Estimation of tributary total phosphorus loads to Hamilton Harbour, Ontario, Canada, using a series of regression equations

Enabling Multi-Site Stormwater Environmental Compliance Approvals in Ontario, Canada

Mobilization and Transformation of Mercury Across a Dammed Boreal River Are Linked to Carbon Processing and Hydrology

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