Mercury speciation in preserved historical sludge: Potential risk from sludge contained within reclaimed land of Minamata Bay, Japan

2020 ◽  
Vol 180 ◽  
pp. 108668 ◽  
Author(s):  
Mineshi Sakamoto ◽  
Takaaki Itai ◽  
Kohji Marumoto ◽  
Masumi Marumoto ◽  
Hitoshi Kodamatani ◽  
...  
Keyword(s):  
Potential Risk ◽  
Mercury Speciation ◽  
Reclaimed Land ◽  
Minamata Bay

Mercury speciation in preserved sludge which is estimated to be remaining under the reclaimed land area of Minamata Bay Japan

2017 ◽  
Vol 280 ◽  
pp. S203 ◽  
Author(s):  
Mineshi Sakamoto ◽  
Takaaki Itai ◽  
Koji Marumoto ◽  
Keisuke Mori ◽  
Milena Horvat ◽  
...  
Keyword(s):  
Mercury Speciation ◽  
Land Area ◽  
Reclaimed Land ◽  
Minamata Bay

Mercury Speciation in the Water of Minamata Bay, Japan

2010 ◽  
Vol 218 (1-4) ◽  
pp. 399-412 ◽  
Author(s):  
Akito Matsuyama ◽  
Tomomi Eguchi ◽  
Ikuko Sonoda ◽  
Akihide Tada ◽  
Shinichirou Yano ◽  
...  
Keyword(s):  
Mercury Speciation ◽  
Minamata Bay

Predicted Restoration of the Surrounding Marine Environment after an Artificial Mercury Decontamination at Minamata Bay, Japan - Economic Values for Natural and Artificial Processes

1992 ◽  
Vol 25 (11) ◽  
pp. 141-148 ◽  
Author(s):  
A. Kudo ◽  
S. Miyahara
Keyword(s):  
Half Life ◽  
Surface Sediments ◽  
Economic Value ◽  
Inorganic Mercury ◽  
Reclaimed Land ◽  
Natural Processes ◽  
Yatsushiro Sea ◽  
Land Mass ◽  
Polluted Sites ◽  
Minamata Bay

More than 35 years ago, an accident surfaced because of human misery at Minamata Bay, Japan. By 1960, more than 100 people suffered (mortality rate was over 20%) by eating fish containing methylmercury. By 1987, 1742 people were identified with this Minamata disease. The methylmercury along with inorganic mercury was released from a nearby chemical factory into the Bay, contaminating not only fish but the entire ecosystem including the bottom sediments. The amount of mercury deposited in the sediments was considered to be 150 tons. The Japanese Government initiated, in 1984, a decontamination project vacuuming the contaminated sediments into a sealed area creating a reclaimed land mass of 582,000 m2. The movement of the mercury deposited in the Bay outward to Yatsushiro Sea, was observed during the last 16 years by sampling and analyzing the surface sediments of Yatsushiro Sea. Since 1975, the deposited mercury moved continuously outside from the Bay at an annual rate of 3.7 tons. The initiation of the artificial decontamination (over $500 million in US funds), however, changed the pattern of mercury movement and drastically reduced its contents with a half-life of 1.83 years. Since 1985, the amounts of mercury in the surface sediments of Yatsushiro Sea have been decreasing dramatically with a half-life of 9.5 years. If this present trend of decrease continues, it becomes possible to predict that the Sea would be completely restored by 2011 AD. Another interesting observation was a historical storm in 1982, which cleaned-up the surface sediments of Yatsushiro Sea with a half-life of 2.76 years. If the clean-up effect of the natural processes in Yatsushiro Sea was compared to the artificial one, its economic value was calculated to be $96 million (US funds). Any decontamination attempt for polluted sites should consider a combination of the natural and artificial decontamination processes for economic reasons.

Pulmonary emboli due to venous aneurysm of extremities

VASA ◽  
2011 ◽  
Vol 40 (4) ◽  
pp. 327-332 ◽  
Author(s):  
Gabrielli ◽  
Rosati ◽  
Vitale ◽  
Millarelli ◽  
Siani ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Surgical Resection ◽  
Potential Risk ◽  
Acute Pulmonary Embolism ◽  
Prophylactic Surgery ◽  
Venous Aneurysm ◽  
Pulmonary Emboli ◽  
Thromboembolic Events ◽  
Thromboembolic Complications ◽  
Risk Patients

Venous aneurysms are uncommon but they can have devastating consequences, including pulmonary embolism, other thromboembolic events and death. We report six cases of venous aneurysm of the extremities, in which the first sign of presence was acute pulmonary embolism. Surgical resection is recommended whenever possible. Our experience suggests that prophylactic surgery is cautiously recommended for low-risk patients with venous aneurysms of the abdomen and strongly recommended for extremity deep and superficial venous aneurysms for their potential risk of developing thromboembolic complications despite adequate anticoagulation. Other venous aneurysms should be excised only if they are symptomatic or enlarging.

Transmyocardial Laser Revascularisation - A Potential Risk in Acute Situation?

Swiss Surgery ◽  
2000 ◽  
Vol 6 (2) ◽  
pp. 65-68
Author(s):  
Mueller ◽  
Tevaearai ◽  
Genton ◽  
Bettex ◽  
von Segesser
Keyword(s):  
Potential Risk ◽  
Transmyocardial Laser Revascularisation ◽  
Analyse Morphométrique

Les effets morphologiques et fonctionnels de la revascularisation transmyocardique au laser (RTML) sont analysés en conditions aiguës sur un modèle porcin. La paroi latérale du ventricule gauche de 15 porcs (poids moyen: 73 +/- 4kg) a été percée de 10 canaux laser (laser: Ho-YAG; longueur d'onde: 2.1 u, diamètre de la sonde: 1.75 mm). Une échocardiographie a été effectuée avant, ainsi que 5 min et 30 min après la procédure. Les paramètres échocardiographiques ont été enregistrés en court axe à la hauteur des canaux laser. Ils comprenaient la fraction d'éjection, la fraction de raccourcissement et la motilité segmentaire de la région lasérisée (échelle de 0 à 3: 0 = normal, 1 = hypokinésie, 2 = akinésie, 3 = dyskinésie). Après sacrifice de l'animal, la région lasérisée a été coupée dans un plan perpendiculaire aux canaux pour histologie et analyse morphométrique. Après 5 min, tous les index échocardiographiques ont montré une aggravation significative par rapport aux valeurs de base (p < 0.01). Après 30 min, plus aucun des paramètres ne présentait de variation significative par rapport aux valeurs de base. La surface de section des lésions mesurait 8.8 +/- 2.4 mm2 soit plus du triple de celle de la sonde laser elle-même (p < 0.01). En conditions aiguës, les lésions dues à la sonde de RTML sont nettement plus grande que la sonde elle-même et entraînent une baisse transitoire de la contractilité segmentaire sur un coeur sain. Ces résultats suggèrent que la RTML doit être utilisée avec prudence en clinique chez les patients avec une mauvaise fonction ventriculaire.

Chemical Analysis of an Ayurvedic Herbo-Metallic Preparation Containing Mercury: Speciation of Mercury

Planta Medica ◽  
2011 ◽  
Vol 77 (05) ◽  
Author(s):  
B Avula ◽  
YH Wang ◽  
CS Rumalla ◽  
AG Chittiboyina ◽  
A Srivastava ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Mercury Speciation

Premature Arterial Disease Associated with Familial Antithrombin III Deficiency

1990 ◽  
Vol 63 (01) ◽  
pp. 013-015 ◽  
Author(s):  
E J Johnson ◽  
C R M Prentice ◽  
L A Parapia
Keyword(s):  
Risk Factors ◽  
Venous Thromboembolism ◽  
Potential Risk ◽  
Antithrombin Iii ◽  
Arterial Disease ◽  
Coagulation System ◽  
Early Age ◽  
Arterial Thromboembolism ◽  
Potential Risk Factors ◽  
Antithrombin Iii Deficiency

SummaryAntithrombin III (ATIII) deficiency is one of the few known abnormalities of the coagulation system known to predispose to venous thromboembolism but its relation to arterial disease is not established. We describe two related patients with this disorder, both of whom suffered arterial thrombotic events, at an early age. Both patients had other potential risk factors, though these would normally be considered unlikely to lead to such catastrophic events at such an age. Thrombosis due to ATIII deficiency is potentially preventable, and this diagnosis should be sought more frequently in patients with arterial thromboembolism, particularly if occurring at a young age. In addition, in patients with known ATIII deficiency, other risk factors for arterial disease should be eliminated, if possible. In particular, these patients should be counselled against smoking.

Justification of the need to increase the fertility of reclaimed alluvial soils of JSC «Moskovskoe»

2020 ◽  
pp. 44-48
Author(s):  
Andrey ilinsky ◽  
Alexander Nefedov ◽  
Konstantin Evsenkin
Keyword(s):  
Organic Matter ◽  
Agricultural Land ◽  
Crop Yields ◽  
Anthropogenic Impacts ◽  
Fertility Restoration ◽  
Research Work ◽  
Alluvial Soils ◽  
Ecological Stability ◽  
Reclaimed Land ◽  
Adverse Weather

Global climatic changes, technogenic pollution by pollutants, violations of technologies of exploitation of reclaimed land lead to a decrease in fertility and soil degradation of agricultural land. Adverse weather conditions, resulting in a lack of adequate flood water, and economic difficulties in agriculture make it difficult to fill the deficit of organic matter and macronutrients in reclaimed alluvial soils. The monitoring of agrochemical properties of alluvial meadow medium-loamy soil of the stationary site (reclaimed lands of JSC «Moskovskoye» of Ryazan region), located in the floodplain of the Oka river, conducted by the Meshchersky branch of Vniigim, showed the presence and intensification of degradation changes in the soil. Thus, comparing the agrochemical indicators in the layer 0–20 cm, carried out in 1995, with the indicators of 2019, it should be noted a decrease in soil fertility. The decrease in soil quality was expressed in a decrease in the amount of mobile phosphorus by 37.6 %, mobile potassium by 53.3 %. Also, during this time there was a decrease in organic matter by 9.1 %, and an increase in soil acidity was 0.6 pH. As a result of such changes, soils lose ecological stability and become more vulnerable to adverse weather and negative anthropogenic impacts. In such a situation, advanced agricultural techniques should be actively used to obtain guaranteed, environmentally safe crop yields and restore the fertility of degraded reclaimed soils. In this regard, there is a need to develop innovative methods of fertility restoration of degraded alluvial soils in reclaimed lands using multi-component organic-mineral ameliorants. Meshchersky branch performs research work in addressing this issue.

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