Air Monitoring 53 Rain and precipitation measurement made easy, wherever and whenever its needed
The RHD sensor from Sommer is a competitively priced, high precision, ultra-robust rain gauge instrument. It is a very low-power, maintenance-free and totally sealed acoustic instrument with no mobile parts. The sensing part of the instrument is a polished stainless-steel hemisphere supported by a strong stainless-steel arm.
Impact of raindrops or hailstones induces change in internal acoustic pressure. In addition to the rain intensity data, the distrometer function also provides information about the drop size distribution. If you need a solution for remote or tough to access areas and you do not have the manpower for regular checking/maintenance of your rain gauge then this is the perfect choice of sensor. It is also available as a “plug and play” station which includes data storage, data processing installation tools and enough power solution to be an autonomous station.
The instrument includes a dedicated analogue conditioning module, a digital I/O module and an analogue restitution module. It can therefore be connected to, or communicate conveniently with, almost any external analogue or digital central unit (data logger, industrial module interface, instrumentation DAQ, USB port). It features continuous or pulse analogue voltage outputs and supports SDI-12 communication, serial RS-232, and Modbus RTU RS485 (using an optional adapter).
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52721pr@reply-direct.com Futureproofi ng Against Shifting Methane Legislation
With the EU parliament recently voting overwhelmingly in favour of reducing methane emissions in the energy sector, the crackdown on the second most impactful greenhouse gas has commenced. With more legislative shifts likely to follow, Mike White, Territory Manager UK & Ireland at QED Environmental Systems Ltd, discusses the importance of getting ahead of the curve in regard to emissions monitoring.
While the main focus of Europe’s decarbonisation efforts seems to rest squarely on carbon dioxide (CO2), it would be fair to say that the impact of methane (CH4) is not as widely recognised, despite being signifi cantly more potent at trapping heat in the atmosphere. On a 100- year timescale, methane’s global warming potential (GWP) is 28 times greater than that of carbon dioxide, with this fi gure rising to 84 times that of its counterpart over a 20-year period[1].
Here, the factor that keeps methane from taking the top spot as the greatest contributor to climate change is its lifespan, as it remains in the atmosphere for a much shorter period than carbon dioxide. However, this is not to say that its impact should be understated, particularly when its role as a local air pollutant and contributor to tropospheric ozone formation is brought into the equation.
Legislation Gathers Pace
Until recently, legislation surrounding methane emissions has lagged behind that of carbon dioxide, with recent research from The Conversation[2] indicating that just 13% of man-made global methane emissions are regulated by policies capable of controlling and preventing them. However, this looks to have fi nally turned a corner in 2023, with the fi rst EU-wide legislation aimed at cutting methane emissions being passed by MEPs[3]. The proposal, which was voted through with 114 votes in favour, 15 against and 3 abstentions, will aim to slash direct methane emissions from the oil, gas, fossil gas and coal sectors, with an extension to the petrochemicals industry also likely.
Perhaps most signifi cantly, the legislation details the obligations to detect and repair methane leaks within these industries. From the date of entry into force of this regulation, operators have six months to submit a comprehensive leak detection and repair programme to the relevant national authorities, with MEPs strongly pushing the European Commission to double down on the frequency of leak detection and repair surveys. Here, operators will have just fi ve days to repair or replace all components found to be dispersing the gas.
Looking to the Future
While the passing of this legislation is already a signifi cant development, it is important to recognise that this is merely the tip of the iceberg, and that the greatest clampdowns on methane emissions are likely to follow in the coming years. As part of the aforementioned proposal, MEPs also urged the European Commission to set a binding 2030 reduction target for methane emissions by 2025, spanning all relevant sectors. As part of this, member states will also be expected to set national reduction targets as part of ongoing energy and climate strategies, suggesting that this policy will be set into stone sooner rather than later.
Moreover, an earlier document[4] published by the European Commission in 2020 sets out a strategy for reducing methane emissions in the EU and may offer a clue as to what other developments may soon follow. The communication calls for robust leak detection and repair (LDAR) programmes for all fossil gas infrastructure – a change that has already come into play – but also for the energy, agricultural, waste, wastewater, biomethane and biogas industries.
If current developments are anything to go off, it would be fair to assume that the scope of legislation will soon expand to cover these. It should also be noted that the document makes reference to reporting via a three-tier framework as a cross-sectoral obligation. With this in mind, whether or not a business is currently affected by legislation, these factors suggest that it will be a matter of when, and not if, they will be.
Setting Out a Credible Path
For any business likely to be affected by these changes, setting out a clear path to compliance will be key to avoiding falling foul of legislation. It is clear that establishing a comprehensive LDAR programme is the fi rst logical step to getting a handle on methane emissions. However, integrating such a framework can often take time, so operators can benefi t from seeking expert consultation ahead of time, so as to alleviate any teething problems and ensure best practice before the legislative hammer strikes.
[1]
https://energy.ec.europa.eu/topics/oil-gas-and-coal/methane-emissions_en
[2]
https://theconversation.com/methane-must-fall-to-slow-global-heating-but-only-13-of- emissions-are-actually-regulated-205941
[3]
https://www.europarl.europa.eu/news/pt/press-room/20230424IPR82039/meps-vote- to-boost-methane-emission-reductions-from-the-energy-sector#:~:text=The%20new%20 legislation%2C%20adopted%20with,injected%20into%20the%20gas%20network
[4]
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A52020DC0663 More information online:
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