To improve on the quality of monitoring data in the Baltic Sea, an intercalibration of analyzing methods of nutrients and heavy metals was recently carried out involving 22 laboratories across the region. The results were published in a report.
“For accurate Baltic-wide assessments of nutrient and metal concentrations, intercalibration between laboratories is crucial as it guarantees the compatibility of reported data, basically allowing us to compare apples with apples,” said Dmitry Frank-Kamenetsky, the coordinator of the HELCOM Pollution Load Compilation (PLC) projects.
HELCOM now regularly organizes intercalibration campaigns at the beginning of each PLC project, to assure compatibility of reported data regarding nutrients and heavy metals. The latest campaign was already the third of its kind.
“The more we intercalibrate, the better data we get,” said Frank-Kamenetsky. “The good results of the recent intercalibration exercise confirm the trend of a continuous improvement of environmental monitoring data produced by the HELCOM countries.”
A revised full version of the HELCOM Regional Action Plan on Marine Litter (RAP ML) was presented at PRESSURE 14-2021. Based on the initial plan that was adopted in 2015 and incorporating the lessons learnt from all previous implementation efforts, the updated version is due to be adopted in October 2021 during the HELCOM Ministerial Meeting 2021, alongside the new Baltic Sea Action Plan (BSAP).
PRESSURE 14-2021 further recognized the successful implementation of some of the actions under the current RAP ML, notably on including HELCOM guidelines on marine litter in national and local waste prevention and waste management plans, as well as sharing best practices on waste management.
Other completed actions under the RAP ML include the development of best practices on the disposal of scrapped pleasure boats and handling of expanded polystyrene, the identification of key practical aspects of prevention of litter, and the retrieval and the management of ghost nets, among others.
On underwater noise, a factor affecting species that are reliant on hearing, such as harbour porpoises, seals and some species of fish, wide support was expressed for the draft Regional Action Plan on Underwater Noise that is currently under development. The plan is due to be adopted with the BSAP later this year, along with an accompanying HELCOM Recommendation.
PRESSURE 14-2021 further developed recommendations on the regional policy document on hazardous substances that provides guidance on the upcoming HELCOM framework for hazardous substances. The framework is being developed to provide a more efficient and future-proof response to threats to the marine environment stemming from hazardous substances, especially from new chemicals.
During the meeting, the topics of physical damage to the seafloor, the next HELCOM holistic assessment (HOLAS III), the update of the Baltic Sea Action Plan, eutrophication and issues pertaining to nutrients such as the Nutrient Recycling Strategy and the HELCOM framework on internal nutrient load management were also discussed.
The meeting was attended by all HELCOM Contracting Parties and observers from Coalition Clean Baltic (CCB), Baltic Farmers’ Forum on Environment (BFFE), the Federation of European Aquaculture Producers (FEAP), European Federation of National Associations of Water and Wastewater Services (EurEau), Race for the Baltic, and John Nurminen Foundation, as well as by invited guest from Baltic Nest Institute (BNI) and the City of Helsinki.
“The BSAP remains one of the most effective instruments for achieving the HELCOM environmental objectives, offering a long-term vision and strategic orientation for a healthy Baltic Sea,” said the Executive Secretary of HELCOM, Rüdiger Strempel, in his opening plenary address, adding that the update of the plan is already well set to uphold this legacy. The BSAP is due to be updated later this year at the next HELCOM Ministerial Meeting.
Besides the BSAP, several round table sessions were dedicated to other pressing issues such as hazardous substances, and specifically on the modernizing of the HELCOM framework dealing with the issue. HELCOM is currently reviewing its processes on hazardous substances to allow a faster and more efficient response to emerging challenges caused, for instance, by the introduction of new chemicals used in industry and consumer products. The new strategic direction will also enable a better understanding of the full diversity of sources and pathways of contaminants to the Baltic Sea.
During the forum, other key discussions touched on river basin management and marine spatial planning, as well as on the implementation of projects conducted by way of cross-border cooperation.
Close attention was also paid to the adaptation to climate change, notably in connection with the implementation of the Agenda 2030 in 80 cities of the Union of the Baltic Cities (UBC) as well as in light of current trends in Russia.
Held in a hybrid online and in-person format, the “Baltic Sea Day” Forum was coordinated by the Government of Saint Petersburg, Russia and the State Company “Mineral”, with support from HELCOM, the Ministry of Natural Resources and Environment of the Russian Federation, and the Committee for Nature Use, Environmental Protection and Ecological Safety of Saint Petersburg.
“There’s a long tradition of HELCOM involvement in the Baltic Sea Day Forum that has been held annually since 2000 in Saint Petersburg,” said Strempel, adding that during its 20-year history, the forum has become a key platform for the environmental dialogue at the regional and global level.
In a bid to better understand the effects of certain hazardous substances on the Baltic Sea, HELCOM, in collaboration with Stockholm University’s Baltic Sea Centre, has compiled the latest science on selected chemical contaminants.
“We must identify the major sources of the hazardous substances and understand how they move in the ecosystems to be able to do something about the problem,” said Emma Undeman, a researcher at Stockholm University and lead author of the reports.
The reports give insights into the sources and pathways to the sea of the addressed substances, as well as on how their concentrations have changed in the Baltic Sea over time.
Dioxins and PCBs, mainly by-products from industrial processes, primarily stem from atmospheric emissions, further persisting in the environment and accumulating in the food chain. This is a particular cause for concern since these substances are known for their adverse effects on the nervous, immune and endocrine systems of living organisms.
The levels of brominated flame retardants (PBDE) – which are now either banned or regulated but were heavily used in the past as additives to prevent ignition and delay spread of fire such as in furniture and curtains – seem to be declining, but trends show that it could take up to 40 years for these contaminants to reach safe levels in the Baltic Sea.
With regard to PFOS and PFAS, used for instance in metal coatings such as Teflon or in firefighting foams, the main pathways are discharges from wastewater treatment plants, and runoff from contaminated sites via groundwater and drainage ditches. Research on PFOS in Baltic Sea biota further indicates that transport to the sea has dropped but that concentrations have not yet declined, pointing towards a high persistence in the marine environment.
Diclofenac, a widely used painkiller that is water soluble, mainly enters the sea through wastewater treatment plants which have a low removal rate of the drug. Despite good absorption by the human body when ingested, diclofenac is overused, leading to significant excretions reaching sewer systems. Some of the diclofenac in wastewater may also originate from dermal application which has a low absorption rate by the body.
The four reports support the update of the HELCOM Baltic Sea Action Plan (BSAP), HELCOM’s strategic programme of actions for restoring good ecological status of the Baltic marine environment. The BSAP is due to be updated in 2021.
Information from the reports will notably serve to evaluate the efficiency of currently implemented measures under the present BSAP, and for suggesting additional measures needed to improve the Baltic Sea’s state in regard to the reduction of concentrations of hazardous substances.
“I was surprised by the large amount of existing research and projects in the Baltic Sea,” said Aaron Vuola, the HELCOM project coordinator in FanpLESStic-sea who led the publication, adding that it shows how pressing the issue of microplastics is in the region.
The review, for which a summary for policy makers is also available, establishes a comprehensive baseline on the existing policies related to microplastics on global, Baltic Sea, EU, and national levels. The report also showcases some of the existing research on microplastics at these various levels.
“This review confirms the need for harmonized monitoring methods if we want to be able to compare studies between regions and different matrices, or establish baselines for current microplastic levels,” said Vuola.
According to the report, the lack of commonly agreed methodologies for monitoring, sampling and analyses of microplastics is a major concern and calls for urgent need for harmonized, cost-efficient, and sufficiently robust monitoring methodologies for microplastics.
Currently, microplastics are not directly addressed through any global instrument even though several existing instruments cover some aspects related to marine litter and hence microplastics. However, the European Union is working towards restricting the use of intentionally added microplastic particles to consumer or professional use products.
Also highlighted by the report are the impacts of microplastics on humans through food chain or other means, still largely unknown and calling for more research.
“There is already lot of evidence of the negative impacts of microplastics to support the need for global, EU and national level regulation, but we also have to reduce the plastic use in general and address the problematic products in earlier phase of their life-cycle before they become marine litter and microplastics,” said Vuola.
In addition to providing an overview of the regulatory framework and useful information on topics such as sources and types of microplastics, the report can be used as a database for large amount of concluded research on various topics around the issue of microplastics.
Intended for shipowners, port operators, local administrations as well as municipal wastewater companies, the Technical Guidance was developed to facilitate the management of wastewater from ships to better comply with IMO regulations on wastewater handling in the Baltic Sea region.
In 2011, the IMO designated the Baltic Sea a Special Area for sewage discharges from passenger ships, directing passenger ships operating in the Baltic Sea and not equipped with an on-board sewage treatment facility to discharge their sewage – or black water – at port, in a so-called port reception facility (PRF).
“Initial experiences show that there is no ‘one size fits all’ solution,” said Susanne Heitmüller, the Chair of HELCOM Maritime, the HELCOM working group that deals with shipping-related topics. “Almost each port, with its own, specific infrastructure requirements, needs a tailored solution,” she added.
The current lack of experience with sewage handling in ports requires the development of new and innovative approaches to manage these new challenges. The Technical Guidance for the handling of wastewater in ports was produced to fill this gap and offer a wide range of possible options to several scenarios ships and ports may face.
“The Technical Guidance sets out probable problems a port may encounter, and presents possible solutions on the different aspects of the management of wastewater from ships,” said Heitmüller.
Under the IMO regulations, all newly built passenger ships after June 2019 are required to comply to stricter rules on wastewater discharges, while older passenger ships will have to comply to the same rules by June 2021, with some exceptions until June 2023 for ships en route directly to or from a port located outside the Baltic Sea and to or from a port located east of longitude 28˚10′ E.
According to the rules, passenger ships which carry more than 12 passengers will have to either discharge sewage into port reception facilities, or alternatively at sea – provided that nutrients have been reduced by 70% for nitrogen and 80% for phosphorus through on-board treatment.
Untreated wastewater has been identified as an important source of both hazardous substances and nutrients, the main cause of eutrophication leading to unwanted growth of blue-green algae that upset the Baltic Sea’s biodiversity.
Marine litter, underwater noise and chemical contamination of the marine environment were prominently featured on the agenda of the PRESSURE 11-2019 meeting held in Brussels from 22 to 25 October. The meeting was further complemented by two workshops on hazardous substances and marine litter.
“Marine litter is posing a threat to the Baltic Sea’s biodiversity, so it needs to be solved rapidly,” said Dmitry Frank-Kamenetsky, adding that the issue is being successfully addressed through the implementation of the HELCOM Regional Action Plan on Marine Litter.
In Brussels, progress in the implementation of the plan was particularly acknowledged, and further steps were outlined to deal with derelict fishing gear, to improve stormwater management – crucial in addressing microplastics – and to address expanded polystyrene, one of the top litter items found on the entire Baltic Sea coast.
“Since rivers are significant pathways bringing litter and all sorts of substances to the sea, we also need to look upstream and beyond our shores,” said Frank-Kamenetsky, echoing the common view that further cooperation with river basin management authorities needs to be strengthened to address the marine litter issue.
Furthermore, a new draft of the action plan to mitigate manmade underwater noise was presented at PRESSURE 11-2019. “Although the document is still in a drafting phase, it is a first step in the HELCOM process that may eventually lead to concrete measures to ease the effects of man-made sound and noise on aquatic wildlife,” said Frank-Kamenetsky.
Marine mammals and certain type of fish are particularly affected by underwater noise since they rely heavily on hearing throughout their entire life, such as for geolocation, communicating, feeding or mating.
Chemical contamination of the marine environment was another of the key environmental pressures emphasized at PRESSURE 11-2019, highlighting the vast variety of chemicals currently used in industries and households. New products are continuously flooding the markets, and their effects on the marine environment aren’t always clear.
At the meeting, the HELCOM members therefore welcomed the progress on a knowledge base on micropollutants including pharmaceuticals currently in development, and concluded that the HELCOM framework on hazardous substances might require a significant revision to be able to respond to threats posed by these new chemicals.
Moreover, a new assessment of the input of nutrients to the Baltic sea was presented at PRESSURE 11-2019, illustrating the substantial reduction of nutrient inputs since the reference period. The assessment shows that inputs of nitrogen and phosphorus to the Baltic Sea were reduced by 14 and 24 percent respectively since early 2000.
The highest nitrogen input reduction in this period was observed in the Danish Straits (24 percent) and Kattegat (21 percent), while the highest reduction of phosphorus load was noted in the Gulf of Finland (51 percent) and Baltic Proper (22 percent).
The reduction indicates the joint effort of all HELCOM countries to reduce input of nutrients and commitment to abate eutrophication – the major threat for the Baltic Sea. But the assessment shows that the nutrient input targets for the whole Baltic Sea have not yet achieved.
PRESSURE 11-2019, the “11th Meeting of the Working Group on Reduction of Pressures from the Baltic Sea Catchment Area (HELCOM Pressure Group),” was hosted by the European Commission in Brussels.
The HELCOM Pressure Group seeks to provide the necessary technical background to the work on inputs of nutrients and hazardous substances from both diffuse and point sources on land, including follow-up of the implementation of the HELCOM nutrient reduction scheme. It currently also works on emerging challenges such as underwater noise and plastic pollution.
Two former pollution sites located in the Kaliningrad region in Russia were approved for removal from the HELCOM Hot Spot list by the HELCOM Heads of Delegation, one of the decision-making instances, during their last meeting held in Helsinki from 18 to 19 June 2019 – the 56th Meeting of the HELCOM Heads of Delegation(HOD 56-2019).
The first site to be removed from the list is the Kaliningrad wastewater treatment plant, or HELCOM Hot Spot No. 67. Newly constructed in December 2015, the upgraded wastewater treatment plant of Kaliningrad started to be fully operational by the end of 2016, with all of Kaliningrad’s sewage water redirected to the new plant.
“The new treatment plant fully complies with the HELCOM recommendation on municipal wastewater,” said Natalia Tretiakova, the Russian Head of Delegation to HELCOM. With its population of 574,000 people, the city of Kaliningrad was the biggest source of untreated wastewater input to the Baltic Sea in the Kaliningrad region until the launch of the new plant.
In the same meeting, the deletion of HELCOM Hot Spot No. 69, the Cepruss pulp and paper mill in Kaliningrad, Russia, was also approved. Cepruss was added to the list because of significant discharges of pollutants stemming from the processing of pulp and paper into the Pregolya river. The site ceased all production in 2011.
Since 1992, HELCOM maintains a list of significant pollution sites around the Baltic Sea – the HELCOM Hot Spots. Today, about three quarters of all hotspots have been cleaned up. The most notorious Hot Spots are point sources such as municipal facilities and industrial plants, but the programme also covers pollution from agricultural areas and rural settlements, and sensitive areas such as coastal lagoons and wetlands where special environmental measures are needed.
Furthermore, in Helsinki, the update of the Baltic Sea Action Plan(BSAP) featured prominently on the meeting’s agenda, with the Heads of Delegation moving forward on the structure of the updated plan. Maintaining the same level of ambition for the updated BSAP was a particular point of emphasis.
HOD 56-2019 also adopted the revised HELCOM Recommendation 28E/13 on Introducing Economic Incentives as a Complement to Existing Regulations to Reduce Emissions from Ships. Where implemented already, economic instruments have proven to increase environmentally friendly shipping practices beyond the existing legislation. Some of these methods include differentiated port fees and fairway dues, differentiated taxation of marine fuels and on-shore power supply.
The creation of an expert network on marine protected areas (MPAs) – HELCOM Network for Marine Protected Area Management (EN MPA MANET) – was also approved during the meeting in Helsinki. The new network will respond to the need for a concerted approach on the management of MPAs across the Baltic Sea region, especially for transboundary areas. It will provide expert input to HELCOM work related to MPA management, as well as conservation of habitats, biotopes and species in general, the relevant Ecological Objectives in the Baltic Sea Action Plan.
Bidding farewell to the current HELCOM Executive Secretary, Ms Monika Stankiewicz, who is due to leave the organization in July 2019, the Heads of Delegation singled out her excellent performance and acknowledged her instrumental role in lifting HELCOM to where it is today.
Stankiewicz has been at the HELCOM Secretariat since 2006 when she started as Professional Secretary for Maritime Affairs. She assumed the position of Executive Secretary in 2012 until 2019. She will be succeeded by Mr Rüdiger Strempel.