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Introductory Chapter: Marine Monitoring Pollution 导论章:海洋污染监测
Pub Date : 2019-06-05 DOI: 10.5772/INTECHOPEN.83846
H. Fouzia, Boufeniza Redouane Larbi, Adem Amina, Chabi Nacera, Bachari Nour El Islam
Monitoring the quality of the marine and coastal environment combines activities of various kinds and is defined as a type of activity that can be exercised on a regulatory basis (this is a control) or to evaluate levels or trends for a scientific study. This definition made it possible to clarify later, after a good number of debates, the definition of the monitoring objectives. It was at the origin of the extensive definition produced by the Oslo and Paris Conventions (the OSPAR Convention), which constitutes the most current reference: “continuous monitoring is the repeated measure of the quality of the marine environment and of each of its compartments, namely, water, sediment and living environment; natural or anthropogenic activities or inputs that may affect the quality of the marine environment; and the effects of its activities and contributions” [1]. Monitoring of the coastal and marine environment in particular requires the study of water (physical chemistry, temperature, salinity, oxygen, bacteriology, etc.), the sediment (grain size, micro, etc.), and living (benthos, plants, magnoliophytes, algae, fish, coral, biomonitoring, bioindicators). The methods and means of analysis and monitoring features of the marine and coastal environment (physical and chemical parameters, pollutants, nutrients, etc.) are numerous. Measurements are essential for understanding and interpreting data to accomplish the goals of surveillance [2]. The study of environmental pollution implies as a precise knowledge as possible of the distribution of pollutants in ecosystems and their effects on living organisms. Sometimes, it is customary to distinguish between a chemical monitoring whose purpose is to determine the level of contamination by a particular pollutant biotope and biomass and other biological monitoring which aims to assess the impact at a given moment or time of environmental pollution on exposed populations and communities. Since the critical level of ecotoxicological concentration-response relationship to a given pollutant is known, it will subsequently be possible to establish environmental protection standards for the pollutant under consideration.
监测海洋和沿海环境的质量结合了各种各样的活动,并被定义为一种可以在监管基础上进行的活动(这是一种控制),或为科学研究评估水平或趋势。这一定义使得在经过多次辩论之后澄清监测目标的定义成为可能。这是《奥斯陆公约》和《巴黎公约》(《OSPAR公约》)所作的广泛定义的起源,该定义构成了最新的参考:“持续监测是对海洋环境及其每一个部分,即水、沉积物和生活环境的质量的反复测量;可能影响海洋环境品质的自然或人为活动或投入;以及其活动和贡献的影响”[1]。对沿海和海洋环境的监测尤其需要对水(物理化学、温度、盐度、氧气、细菌学等)、沉积物(粒度、微生物等)和生物(底栖动物、植物、木兰植物、藻类、鱼类、珊瑚、生物监测、生物指标)进行研究。分析和监测海洋和沿海环境特征(物理和化学参数、污染物、营养物质等)的方法和手段很多。测量对于理解和解释数据以实现监测目标至关重要[2]。对环境污染的研究意味着要尽可能精确地了解生态系统中污染物的分布及其对生物体的影响。有时,习惯上将化学监测与其他生物监测区分开来,前者的目的是确定某一特定污染物生物群落和生物量的污染程度,后者的目的是评估环境污染在某一时刻或时间对受污染人口和社区的影响。由于已知与某一污染物的生态毒理学浓度-反应关系的临界水平,因此将有可能为所考虑的污染物建立环境保护标准。
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引用次数: 0
Sediment and Organisms as Marker for Metal Pollution 沉积物和生物作为金属污染的标志
Pub Date : 2019-05-20 DOI: 10.5772/INTECHOPEN.85569
O. M. Chuan, K. Yunus
Pollution caused by metal elements has drawn increasing attention worldwide due to the increase of anthropogenic contaminants to the marine ecosystems. Pollution of the natural environment by metals is a serious problem because these elements are indestructible and most of them have toxic effects on living organisms, when they exceed a certain concentration. Sediments are widely used as geo-marker for monitoring and identifying the possible sources since sediment can act as sink for the pollutants. Most metals are bound in fine-grain fraction because of its high surface area-to-grain size ratio where they have a greater biological availability compared to those in larger fraction. Lying in the second trophic level in the aquatic ecosystem, shellfish species have long been known to accumulate both essential and non-essential metals. Many researchers have reported the potentiality of using mollusks, especially mussel and oyster species, as bioindicators or biomarkers for monitoring the metal contamination of the aquatic system.
由于人为污染对海洋生态系统的影响越来越大,金属元素污染日益引起世界各国的重视。金属对自然环境的污染是一个严重的问题,因为这些元素是坚不可摧的,当它们超过一定浓度时,它们中的大多数对生物体具有毒性作用。沉积物被广泛用作监测和识别可能来源的地理标记,因为沉积物可以作为污染物的汇。大多数金属被结合在细粒分数中,因为它的表面积与晶粒尺寸比高,与大分数相比,它们具有更大的生物利用度。贝类在水生生态系统中处于第二营养水平,长期以来人们都知道贝类可以积累必需和非必需金属。许多研究人员已经报道了利用软体动物,特别是贻贝和牡蛎物种作为监测水生系统金属污染的生物指标或生物标志物的潜力。
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引用次数: 17
Decadal Pollution Assessment and Monitoring along the Kenya Coast 肯尼亚沿岸十年污染评估与监测
Pub Date : 2019-03-23 DOI: 10.5772/INTECHOPEN.82606
E. Okuku, Kiteresi Linet Imbayi, Owato Gilbert Omondi, Wanjeri Veronica Ogolla Wayayi, Mwalugha Catherine Sezi, Kombo Mokeira Maureen, S. Mwangi, N. Oduor
Marine contamination arising from land-based sources is on the rise along the Kenyan Coast. We carried out a decadal pollution survey between 2008 and 2018 to determine the levels of various pollutants (nutrients, trace metals, persistent organic pollutants, and 210 Po) in water, sediment, and biota collected from selected locations in Kenya. Nutrient levels in water ranged between <0.10 and 1560.00, <0.10 and 1320.00, and <0.10 and 3280.00 μ g/L for PO 43 − -P, (NO 2 − + NO 3 − )-N, and NH 4+ -N, respectively, while Chl-a values ranged between 0.02 and 119.37 mg/L. Total PAH, PCBs, and OCPs in sediment from the studied locations ranged from BDL-37800, 0.012–7.99 and BDL-6.10 ng/g. High level of PAH in Kilindini port was primarily from petroleum sources. DDD + DDE/DDT ratio was above 0.5 suggesting historical input. Sediment trace metal concentration from selected locations in Kenyan estuaries had various ranges, that is, Al (0.06–9804284.00 μ g/g), Zn (3.82–367.20 μ g/g), Cu (7.5–169.60), Cd (DL − 2.40 μ g/g), Mn (BDL-169.60 μ g/g), Cr (2.55–239.10 μ g/g), and Pb (BDL-135.60) μ g/g dw. Surface sediment 210 Po activities ranged between 20.29 and 43.44 Bq kg − 1 dw. Chl-a and PO 43 − -P data revealed enhance primary productivity in Mombasa peri-urban creeks and estuarine areas. Although the reported concentrations of trace metals and POPs are low in most locations from Kenya, there is a potential risk of bioaccumulation of these contaminants in marine biota; thus, there is a need for continuous monitoring to protect both ecosystem and human health.
肯尼亚沿海地区陆源造成的海洋污染呈上升趋势。我们在2008年至2018年期间进行了一项十年污染调查,以确定从肯尼亚选定地点收集的水、沉积物和生物群中的各种污染物(营养物质、微量金属、持久性有机污染物和210 Po)的水平。水体中PO 43−-P、(no2−+ no3−)-N和nh4 + -N的营养水平分别在<0.10 ~ 1560.00、<0.10 ~ 1320.00和<0.10 ~ 3280.00 μ g/L之间,Chl-a在0.02 ~ 119.37 mg/L之间。研究地点沉积物中的多环芳烃、多氯联苯和ocp总量分别为BDL-37800、0.012-7.99和BDL-6.10 ng/g。基林迪尼港多环芳烃含量高,主要来源于石油。DDD + DDE/DDT比值大于0.5,提示历史输入。肯尼亚河口沉积物中微量金属的浓度范围为:Al (0.06 ~ 9804284.00 μ g/g)、Zn (3.82 ~ 367.20 μ g/g)、Cu(7.5 ~ 169.60)、Cd (DL ~ 2.40 μ g/g)、Mn (bdl ~ 169.60 μ g/g)、Cr (2.55 ~ 239.10 μ g/g)、Pb (bdl ~ 135.60) μ g/g / w。表层沉积物210 Po活度在20.29 ~ 43.44 Bq kg−1 dw之间。Chl-a和po43−p数据显示蒙巴萨城郊河沟和河口地区初级生产力提高。虽然肯尼亚大多数地点报告的微量金属和持久性有机污染物浓度很低,但这些污染物在海洋生物群中存在生物积累的潜在风险;因此,有必要进行持续监测,以保护生态系统和人类健康。
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引用次数: 4
Response of Benthic Foraminifera to Environmental Variability: Importance of Benthic Foraminifera in Monitoring Studies 底栖有孔虫对环境变化的响应:底栖有孔虫在监测研究中的重要性
Pub Date : 2019-01-21 DOI: 10.5772/INTECHOPEN.81658
M. Martins, C. Yamashita, S. Sousa, E. Koutsoukos, S. T. Disaró, J. Debenay, W. Duleba
Foraminifera are eukaryotic unicellular microorganisms inhabiting all marine environments. The study of these protists has huge potential implications and ben-efits. They are good indicators of global change and are also promising indicators of the environmental health of marine ecosystems. Nevertheless, much remains to be learned about foraminiferal ecology. The goals of this chapter are (1) to provide a few examples from foraminifera studies, presenting possible use of foraminifera as bioindicators for the monitoring of transitional and marine ecosystems and (2) to highlight the importance of applying these organisms in environmental monitoring studies. A semienclosed coastal lagoon (Aveiro Lagoon; Portugal), an estuarine system (São Sebastião Channel; SE Brazil), a continental shelf sector (Campos Basin; SE Brazil), and a segment of continental slope (Campos Basin; SE Brazil) are used as examples.
有孔虫是生活在所有海洋环境中的真核单细胞微生物。对这些原生生物的研究具有巨大的潜在意义和益处。它们是全球变化的良好指标,也是海洋生态系统环境健康的有希望的指标。然而,关于有孔虫生态学还有许多有待研究的地方。本章的目标是:(1)从有孔虫研究中提供一些例子,展示有孔虫作为监测过渡和海洋生态系统的生物指标的可能性;(2)强调在环境监测研究中应用这些生物的重要性。半封闭的沿海泻湖(阿威罗泻湖;葡萄牙),河口系统( o sebasti o海峡;巴西东南部),大陆架板块(Campos盆地;巴西东南部)和一段大陆斜坡(坎波斯盆地;以巴西东南部为例。
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引用次数: 8
Nitrogen and Phosphorus Eutrophication in Marine Ecosystems 海洋生态系统的氮磷富营养化
Pub Date : 2019-01-14 DOI: 10.5772/INTECHOPEN.81869
L. Ngatia, J. Grace, D. Moriasi, Robert Taylor
Nitrogen (N) and phosphorus (P) eutrophication in marine ecosystems is a global problem. Marine eutrophication has a negative impact on food security, ecosystem health and economy through disruptions in tourism, fisheries and health industries. Both N and P have known point and non-point sources. Control of point sources has been easier than non-point sources particularly agricultural sources for both N and P as well as fossil fuel combustion for N, which remains a major challenge. Implementing mitigation strategies for N has been reported to be effective for P mitigation; however, the converse is not true due to mobility and volatility of N. Excessive N and P cause algae blooms, anoxic conditions, and ocean acidification with these conditions leading to dead zones, fish kill, toxin production, altered plant species diversity, food web disruption, tourism disruption and health issues. Management of N and P pollution includes reduction of leaching from farms through crop selection, timely and precise application of fertilizer and building artificial wetlands, proper management of animal waste, reduction of fossil fuel N emission, mitigating N and P from urban sources and restoration of aquatic ecosystem. Mitigation measures need to focus on dual nutrient strategy for successful N and P reduction.
海洋生态系统的氮、磷富营养化是一个全球性问题。海洋富营养化通过破坏旅游、渔业和卫生产业,对粮食安全、生态系统健康和经济产生负面影响。N和P都有已知的点源和非点源。控制点源比控制非点源更容易,特别是农业来源的氮和磷以及化石燃料燃烧的氮,这仍然是一个重大挑战。据报告,实施氮减排战略对磷减排是有效的;然而,由于氮的流动性和波动性,反过来就不正确了。过量的氮和磷会导致藻类大量繁殖、缺氧条件和海洋酸化,而这些条件会导致死区、鱼类死亡、毒素产生、植物物种多样性改变、食物网破坏、旅游中断和健康问题。氮磷污染的管理包括通过作物选择减少农场的淋滤,及时准确地施用肥料和建造人工湿地,适当管理动物粪便,减少化石燃料氮排放,减少城市来源的氮磷和恢复水生生态系统。缓解措施需要侧重于双重营养战略,以成功地减少氮和磷。
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引用次数: 57
Oil Spill Dispersion Forecasting Models 溢油扩散预测模型
Pub Date : 2018-12-18 DOI: 10.5772/INTECHOPEN.81764
A. Zafirakou
Oil spill models are used worldwide to simulate the evolution of an oil slick that occurs after an accidental ship collision or during oil extraction or other oil tanker activities. The simulation of the transport and fate of an oil slick in the sea, by evaluating the physicochemical processes that take place between oil phase and the water column, is the base for the recognition and assessment of its environmental effects. Numerous oil spill dispersion models exist in the bibliography. The contri-bution of this chapter is the introduction of a 3D oil slick simulation model developed by the Aristotle University of Thessaloniki, which has been recurrently used in different updated forms and applied in operational mode, since 1991 when it was originally created. The model has been tested in various hypothetical scenarios in North Aegean Sea, Greece, and responded with great success. Findings of the present study highlight the existing experience on the subject and denote the applicability of such models in either tracing the source of a spill or in predicting its path and spread, thus proving their value in real-time crisis management.
溢油模型在世界范围内用于模拟船舶意外碰撞后、石油开采或其他油轮活动期间浮油的演变。通过评价浮油在油相和水柱之间发生的物理化学过程,模拟浮油在海中的运移和命运,是认识和评价其环境影响的基础。参考书目中存在许多溢油扩散模型。本章的贡献是介绍了由塞萨洛尼基亚里士多德大学开发的3D浮油模拟模型,自1991年创建以来,该模型一直以不同的更新形式反复使用,并应用于操作模式。该模型已在希腊爱琴海北部的各种假设场景中进行了测试,并取得了巨大的成功。本研究的发现突出了该主题的现有经验,并表明这些模型在追踪泄漏源或预测其路径和传播方面的适用性,从而证明了它们在实时危机管理中的价值。
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引用次数: 12
The Hazards of Monitoring Ecosystem Ocean Health in the Gulf of Mexico: A Mexican Perspective 监测墨西哥湾海洋生态系统健康的危害:墨西哥的视角
Pub Date : 2018-12-14 DOI: 10.5772/INTECHOPEN.81685
L. Soto, A. Estradas‐Romero, Diana L. Salcedo, A. Botello, G. Ponce-Vélez
Ecological services provided by the Gulf of Mexico constitute vital assets for the socioeconomic development of the USA, Mexico, and Cuba. This ecosystem houses vast biodiversity and significant fossil fuel reserves. However, its ecological stability and resilience have been jeopardized by anthropogenic disturbances. Massive oil spills (Ixtoc-I, 1979; Deepwater Horizon, 2010) caused severe environmental injuries and unveiled the vulnerability of coastal and deep-sea habitats. Baseline and monitoring studies are actions implemented by the Gulf stakeholders to cope with such disturbances. The 3-year monitoring program implemented by Mexico in 2010 to assess the environmental damage caused by the Deepwater Horizon (DWH) event confirmed the void of knowledge on the complexity of physical and biological processes susceptible of being altered by oil spills. Between the pelagic and benthic compartments, the latter proved to be a better option in establishing the baseline concentration and trends of oil compounds. Surficial sediments exhibited an increasing concentration trend of PAH, AH, and trace metals throughout the 3-year monitoring. The macroinfauna and selected biomarkers experienced interannual variability attributed to critical hydrocarbon and trace metal thresholds. Sediment toxicity bioassays added support to the distribution and potential sources of oil contaminants dispersed from the northern gulf toward Mexican waters.
墨西哥湾提供的生态服务是美国、墨西哥和古巴社会经济发展的重要资产。这个生态系统拥有巨大的生物多样性和重要的化石燃料储备。然而,其生态稳定性和恢复能力已受到人为干扰的破坏。大规模石油泄漏(Ixtoc-I, 1979;深水地平线(2010)造成了严重的环境伤害,揭示了沿海和深海栖息地的脆弱性。基线和监测研究是海湾利益攸关方为应对此类干扰而采取的行动。墨西哥于2010年实施了一项为期3年的监测计划,旨在评估深水地平线(DWH)事件对环境造成的破坏,该计划证实了人们对易受石油泄漏影响的物理和生物过程复杂性的认识不足。在远洋和底栖隔间之间,后者被证明是确定油类化合物基线浓度和趋势的较好选择。在3年的监测过程中,表层沉积物中多环芳烃、多环芳烃和微量金属的浓度呈增加趋势。大型动物和选定的生物标志物在烃类和微量金属的临界阈值下经历了年际变化。沉积物毒性生物测定为从北部海湾向墨西哥水域扩散的石油污染物的分布和潜在来源提供了支持。
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引用次数: 3
Detection and Monitoring of Marine Pollution Using Remote Sensing Technologies 利用遥感技术检测和监测海洋污染
Pub Date : 2018-11-29 DOI: 10.5772/INTECHOPEN.81657
Sidrah Hafeez, M. Wong, Sawaid Abbas, C. Y. Kwok, J. Nichol, Kwonho Lee, Danling Tang, L. Pun
Recently, the marine habitat has been under pollution threat, which impacts many human activities as well as human life. Increasing concerns about pollution levels in the oceans and coastal regions have led to multiple approaches for measur-ing and mitigating marine pollution, in order to achieve sustainable marine water quality. Satellite remote sensing, covering large and remote areas, is considered useful for detecting and monitoring marine pollution. Recent developments in sensor technologies have transformed remote sensing into an effective means of monitoring marine areas. Different remote sensing platforms and sensors have their own capabilities for mapping and monitoring water pollution of different types, characteristics, and concentrations. This chapter will discuss and elaborate the merits and limitations of these remote sensing techniques for mapping oil pollutants, suspended solid concentrations, algal blooms, and floating plastic waste in marine waters.
近年来,海洋栖息地受到污染威胁,影响着人类的许多活动和生活。对海洋和沿海地区污染程度的日益关注导致采取多种方法来测量和减轻海洋污染,以便实现可持续的海水质量。卫星遥感覆盖大面积和偏远地区,被认为有助于探测和监测海洋污染。最近传感器技术的发展已使遥感成为监测海洋区域的有效手段。不同的遥感平台和传感器都有自己的能力来绘制和监测不同类型、特征和浓度的水污染。本章将讨论和阐述这些遥感技术在绘制海洋中石油污染物、悬浮固体浓度、藻华和漂浮塑料废物的地图方面的优点和局限性。
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引用次数: 39
期刊
Monitoring of Marine Pollution
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