Why is it difficult to monitor pharmaceutical pollution in aquatic environments globally?

Global monitoring of pharmaceutical pollution is challenging due to the high cost and analytical intensity of traditional research methods, which limit access to necessary equipment. This creates significant geographic disparities in data, with most understanding currently based on research from high-income nations. A scalable and cost-effective approach is needed to address these limitations.

What specific pharmaceutical compounds can this new monitoring method detect?

This novel method is designed to quantify 61 active pharmaceutical ingredients (APIs) and their metabolites. It achieves detection at environmentally relevant nanogram-per-liter (ng/L) levels across various water matrices, including tap water, surface water, and both influent and effluent from wastewater treatment plants.

How does the new method improve the efficiency of large-scale pharmaceutical pollution monitoring?

The method employs a miniaturized sampling and shipping approach combined with a high-throughput, fully validated direct-injection High-Performance Liquid Chromatography-Tandem Mass Spectrometry (HPLC-MS/MS) technique. This significantly reduces the analytical intensity and cost, enabling large-scale monitoring campaigns across different geographical scales and diverse water sources globally.

How reliable and accurate is this novel method for detecting pharmaceutical pollution?

The method demonstrates high reliability with a median linearity (r^2) of 0.99 and intra- and inter-day repeatability and precision consistently below 20% for most determinations. Recoveries from various water matrices were within an acceptable range of 60-130%, and independent interlaboratory validation confirmed its robustness. This ensures accurate quantification at the ng/L levels required for environmental research.

How does understanding pharmaceutical pollution levels relate to AMPAC USA's water purification solutions?

Characterizing pharmaceutical pollution levels is critical for designing effective water purification solutions, as these contaminants are complex and require advanced removal technologies. AMPAC USA, with over 30 years of experience, specializes in designing and manufacturing commercial and industrial reverse osmosis systems capable of removing such challenging pollutants. Our engineers leverage direct field experience from diverse installations, ensuring robust solutions for municipalities, industries, and military bases globally.

A Novel Method To Characterise Levels Of Pharmaceutical Pollution

By:Wilkinson, JL (Wilkinson, John L.)^{[ 1 ]}; Boxall, ABA (Boxall, Alistair B. A.)^{[ 1 ]}; Kolpin, DW (Kolpin, Dana W.)^{[ 2 ]}

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APPLIED SCIENCES-BASEL

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Volume: 9

Issue: 7

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Article Number: 1368

DOI: 10.3390/app9071368

Published: APR 1 2019

Document Type:Article

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Abstract

We know a lot about pharmaceutical pollution in aquatic-risks-from-human-pharmaceuticals-modelling-temporal-trends-of-carbamazepine-and-ciprofloxacin-at-the-global-scale/”>aquatic environments, but most of that research comes from Europe, North America, and other wealthy nations. Why the gap? Well, this kind of research is expensive and needs specialized equipment, making it tough for many places to access. We’re changing that. We’ve come up with a smart new way to monitor pharmaceuticals on a large scale, no matter where you are.

Our method uses tiny samples you can easily ship. Then, we use a super-efficient, fully tested direct-injection High-Performance Liquid Chromatography-Tandem Mass Spectrometry process. This lets us measure 61 active pharmaceutical ingredients (APIs) and their breakdown products in tap water, surface water, and water from wastewater treatment plants – both before and after treatment – collected from anywhere in the world. We even ran a 7-day test to see if samples degraded during shipping. Good news: they didn’t significantly degrade over the 1-3 days it typically takes for global express shipping.

The numbers look great too. Our linearity (r(2)) was consistently 0.93 (with a median of 0.99 +/- 0.02). For 75% of our tests at three different concentrations, the relative standard deviation for repeatability and precision was under 20%. Plus, we recovered 60-130% of the APIs from various water types – 87% from LC-MS grade water, 76% from tap water, 77% from surface water, and 63% from WWTP effluent – all within an acceptable range. We also figured out the detection and quantification limits for all tested water types. They were consistently at the nanogram-per-liter level, which is exactly what we need for environmental API research.

To make sure our method was solid, we had an independent check. We sent three surface water samples and one WWTP effluent sample from North Liberty, Iowa (USA) to two different labs: the University of York Centre of Excellence in Mass Spectrometry (York, UK) and the U.S. Geological Survey National Water Quality Laboratory in Denver (Colorado, USA). Both labs got consistent results, proving our method works globally. This approach means we can finally get rid of the inconsistent analytical results that often pop up when large-scale studies use many different methods. Isn’t that a relief?

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\nThe post A Novel Method to Characterise Levels of Pharmaceutical Pollution in Large-Scale Aquatic Monitoring Campaigns appeared first on Facts About Water.\n\nSource: Water Feed