Longitudinal wastewater sampling in buildings reveals temporal dynamics of metabolites.

Direct sampling of building wastewater has the potential to enable "precision public health" observations and interventions. Temporal sampling offers additional dynamic information that can be used to increase the informational content of individual metabolic "features", but few...

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Main Authors: Ethan D Evans, Chengzhen Dai, Siavash Isazadeh, Shinkyu Park, Carlo Ratti, Eric J Alm
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2020-06-01
Series:PLoS Computational Biology
Online Access:https://doi.org/10.1371/journal.pcbi.1008001
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author Ethan D Evans
Chengzhen Dai
Siavash Isazadeh
Shinkyu Park
Carlo Ratti
Eric J Alm
author_facet Ethan D Evans
Chengzhen Dai
Siavash Isazadeh
Shinkyu Park
Carlo Ratti
Eric J Alm
author_sort Ethan D Evans
collection DOAJ
description Direct sampling of building wastewater has the potential to enable "precision public health" observations and interventions. Temporal sampling offers additional dynamic information that can be used to increase the informational content of individual metabolic "features", but few studies have focused on high-resolution sampling. Here, we sampled three spatially close buildings, revealing individual metabolomics features, retention time (rt) and mass-to-charge ratio (mz) pairs, that often possess similar stationary statistical properties, as expected from aggregate sampling. However, the temporal profiles of features-providing orthogonal information to physicochemical properties-illustrate that many possess different feature temporal dynamics (fTDs) across buildings, with large and unpredictable single day deviations from the mean. Internal to a building, numerous and seemingly unrelated features, with mz and rt differences up to hundreds of Daltons and seconds, display highly correlated fTDs, suggesting non-obvious feature relationships. Data-driven building classification achieves high sensitivity and specificity, and extracts building-identifying features found to possess unique dynamics. Analysis of fTDs from many short-duration samples allows for tailored community monitoring with applicability in public health studies.
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spelling doaj.art-36ad151afe7943c486d47c9f69676b832022-12-21T22:40:41ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582020-06-01166e100800110.1371/journal.pcbi.1008001Longitudinal wastewater sampling in buildings reveals temporal dynamics of metabolites.Ethan D EvansChengzhen DaiSiavash IsazadehShinkyu ParkCarlo RattiEric J AlmDirect sampling of building wastewater has the potential to enable "precision public health" observations and interventions. Temporal sampling offers additional dynamic information that can be used to increase the informational content of individual metabolic "features", but few studies have focused on high-resolution sampling. Here, we sampled three spatially close buildings, revealing individual metabolomics features, retention time (rt) and mass-to-charge ratio (mz) pairs, that often possess similar stationary statistical properties, as expected from aggregate sampling. However, the temporal profiles of features-providing orthogonal information to physicochemical properties-illustrate that many possess different feature temporal dynamics (fTDs) across buildings, with large and unpredictable single day deviations from the mean. Internal to a building, numerous and seemingly unrelated features, with mz and rt differences up to hundreds of Daltons and seconds, display highly correlated fTDs, suggesting non-obvious feature relationships. Data-driven building classification achieves high sensitivity and specificity, and extracts building-identifying features found to possess unique dynamics. Analysis of fTDs from many short-duration samples allows for tailored community monitoring with applicability in public health studies.https://doi.org/10.1371/journal.pcbi.1008001
spellingShingle Ethan D Evans
Chengzhen Dai
Siavash Isazadeh
Shinkyu Park
Carlo Ratti
Eric J Alm
Longitudinal wastewater sampling in buildings reveals temporal dynamics of metabolites.
PLoS Computational Biology
title Longitudinal wastewater sampling in buildings reveals temporal dynamics of metabolites.
title_full Longitudinal wastewater sampling in buildings reveals temporal dynamics of metabolites.
title_fullStr Longitudinal wastewater sampling in buildings reveals temporal dynamics of metabolites.
title_full_unstemmed Longitudinal wastewater sampling in buildings reveals temporal dynamics of metabolites.
title_short Longitudinal wastewater sampling in buildings reveals temporal dynamics of metabolites.
title_sort longitudinal wastewater sampling in buildings reveals temporal dynamics of metabolites
url https://doi.org/10.1371/journal.pcbi.1008001
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AT shinkyupark longitudinalwastewatersamplinginbuildingsrevealstemporaldynamicsofmetabolites
AT carloratti longitudinalwastewatersamplinginbuildingsrevealstemporaldynamicsofmetabolites
AT ericjalm longitudinalwastewatersamplinginbuildingsrevealstemporaldynamicsofmetabolites