91˿Ƶ Chemistry Characterization Facility - Chemistry Department news /mc2/channels_item/2 en 2025 Patterson Distinguished Service Medal /mc2/node/1499 <p><b>Professor Parisa A. Ariya</b> was selected as the recipient of the <b>2025 Patterson Distinguished Service Medal</b>, an award widely regarded as the most prestigious Canadian distinction recognizing exceptional contributions to meteorology. Meteorology is a broad discipline within the atmospheric sciences and encompasses several specialized research areas, including atmospheric chemistry, atmospheric physics, dynamic meteorology, hydrology, climatology, and climate change. The award consists of a formal citation, a framed letter, and a gold medal. </p> <p> </p> <p> </p> Tue, 14 Jul 2026 13:38:40 +0000 91˿Ƶ Derek G. Gray (1941-2026) /mc2/node/1498 <p>It is with a heavy heart that we write to inform you that our dear colleague and friend Dr. Derek G. Gray, Professor Emeritus, passed away on Saturday May 30<sup>th</sup></p> Mon, 08 Jun 2026 12:39:23 +0000 91˿Ƶ Researchers warn of risks posed by ‘contaminants of emerging concern’ found in crops, agricultural soil /mc2/node/1491 <p>A new international study offers insights into the health risks posed by crops’ absorption of “contaminants of emerging concern” (CECs) and flags knowledge gaps the authors say must be addressed.</p> <p>CECs include pharmaceuticals, microplastics, engineered nanomaterials and PFAS (commonly known as “forever chemicals”). The researchers warn that even when present at very low concentrations, these chemicals can subtly alter plant physiology, disrupt soil health and pose wider environmental and human health risks.</p> Tue, 31 Mar 2026 14:16:17 +0000 91˿Ƶ David Harpp (1937-2026) /mc2/node/1490 <p>It is with a heavy heart that we write to inform you that Dr David Harpp, Tomlinson Professor Emeritus in Science Education, our colleague, but also to many of us in the department a teacher, mentor and friend for many decades, passed away Saturday February 14<sup>th</sup>, peacefully and in the presence of those closest to him.</p> Thu, 19 Feb 2026 18:45:54 +0000 91˿Ƶ 91˿Ƶ Magnetic Resonance Facilities (MMRF) are now recycling helium /mc2/node/867 <p>In late April 2021, a helium recovery system was installed for the <a href="/mc2/">Chemistry NMR/EPR Facility</a> in Otto Maass and the <a href="http://www.nmrlab.mcgill.ca">QANUC high-field NMR facility</a> in Pulp and Paper.  This technology, one of only a few in Canada, allows for up to 90% of the helium used in the facilities to be recycled, thus protecting a valuable, and limited, natural resources, and limited greenhouse gas emissions.  Funding was obtained from the <a href="/sustainability/spf">Sustainability Project Fund</a>, the <a href="ht&lt;/body&gt;&lt;/html&gt;"></a></p> Fri, 14 May 2021 12:04:24 +0000 91˿Ƶ NMR facilities managers trying to solve helium problem /mc2/node/773 <p>Department members Tara Sprules, manager of the national high-field NMR facility <a href="http://nmrlab.mcgill.ca">QANUC</a>, and Robin Stein, chemistry department (<a href="/mc2">MC2</a>) NMR/EPR manager, have just had an article published in the CIC newsletter about helium. Together, they use about 2900 L of helium annually to make their eight NMR spectrometers function, and recent cost increases have left them feeling nervous about the future.</p> Fri, 13 Sep 2019 22:01:17 +0000 91˿Ƶ