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Challenges, Innovations, and Future Prospects in Transforming Future Wastewater Treatment Plants into Resource Recovery Facilities
Published in Sreedevi Upadhyayula, Amita Chaudhary, Advanced Materials and Technologies for Wastewater Treatment, 2021
Harmful algal blooms (HABs), yet another environmental disaster, have been threatening the aquatic life and also the drinking water supply in the Great Lakes region, particularly in the Lake Erie basins; this also arises from the problem of excessive nutrient loading, in this case into freshwater lakes. The severity of algal blooms has also increased in the past decade, as shown in Fig. 15.3, although several mitigation measures, such as a 40 percent reduction in total and soluble reactive phosphorus in the western and central Lake Erie basins, were in place (U.S. EPA 2016).
Harmful algal blooms and liver diseases: focusing on the areas near the four major rivers in South Korea
Published in Journal of Environmental Science and Health, Part C, 2019
Seungjun Lee, Jinnam Kim, Boseung Choi, Gijung Kim, Jiyoung Lee
Freshwater harmful algal blooms (HABs) are an indication of an ecosystem imbalance, manifested by excessive growth of selected cyanobacteria species, which is caused by eutrophication and can be exacerbated by climate change.1 The apparent increase in the frequency, magnitude, and distribution of HABs has been in the spotlight across the world.2–5 HABs can lead to negative impacts on environmental and human health.1,6 The major concern of HABs is that certain cyanobacteria produce toxins, such as anatoxins, cylindrospermopsin, microcystins (MCs), nodularins, and saxitoxins.7 These cyanotoxins pose health risks to humans and animals through various exposure routes, including ingestion, inhalation, and dermal contact.7,8 Health effects from cyanotoxin exposures may range from a mild skin rash to serious illness or death.7 Among the freshwater cyanotoxins, MCs have been studied widely because of their high stability in water, relatively high toxicity, and global prevalence.9 MC-LR is classified as a potential human carcinogen (Group 2B) by International Agency for Research on Cancer (IARC). It has been reported that MC exposure was significantly related to the incidence of liver injury and cancer.9,10
Temporal variability of algicidal and growth-inhibiting bacteria at an eelgrass bed in the Ariake Sea, Japan
Published in Bioremediation Journal, 2018
Nobuharu Inaba, Satoshi Nagai, Tomoko Sakami, Tsuyoshi Watanabe, Kiyo Araki, Shinji Kawasaki, Ichiro Imai
The proliferation of harmful microalgae, referred to as harmful algal blooms (HABs), often results in coastal eutrophication and has caused various problems such as damages to mariculture industries, wild fish populations and even risking human health (Lembi and Waaland 1988). The raphidophyte genus Chattonella is also known as a notorious fish-killing flagellate. The distribution of the genus Chattonella is worldwide, including southeast Asia, USA, the coastal areas of the North Sea in Europe, Australia and Brazil (Imai 2012). The loss of tuna in fish keeping totaling 40 million dollars in South Australia (Hallegraeff et al. 1998), massive damage of yellow tail had occurred in Ariake and Yatsushiro Sea, Kyushu, Japan resulted in the loss of 40 million dollars in 2009 and consecutive 70 million dollars in 2010 (Onitsuka et al. 2011; Katano et al. 2012). Thus, effective countermeasures for occurrences of HABs, including Chattonella are urgently needed.
Assessment of water quality and Algae growth for the Ganwol reservoir using multivariate statistical analysis
Published in International Journal of River Basin Management, 2020
Zihan Liu, Jin Chul Joo, Eun Bi Kang, Jin Ho Kim, Sae-Eun Oh, Sun Hwa Choi
Especially, the expansion of cyanobacterial harmful algal blooms (HABs) is a serious threat to the ecosystems, safe use, and sustainability of eutrophic water resources (Paerl et al. 2011, 2016). For most of rivers and lakes in South Korea, cyanobacteria such as Microcystis, Anabaena, Oscillatoria, Phormidium, and Aphanizomenon species producing microcystins and anatoxin-a have been predominantly recognized although the phytoplankton community have displayed seasonal variations as a function of temperature, nutrients, and changes in hydrology (Srivastra et al. 2015). Thus, mitigating the deterioration of water quality is required for the operative and practical management of eutrophic water resources based on the reliable water quality information.