Application of the Long-Term Delayed Luminescence for Study of Natural Water Environments

Long term delayed luminescence: A possible fast and convenient assay for nutrition deficiencies and environmental pollution damages in plants

Plant and Soil ◽

10.1007/bf02197583 ◽

1988 ◽

Vol 109 (1) ◽

pp. 79-83 ◽

Cited By ~ 18

Author(s):

Joachim Bürger ◽

Werner Schmidt

Keyword(s):

Environmental Pollution ◽

Delayed Luminescence

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Long-term delayed luminescence in Scenedesmus obliquus. II. Influence of exogeneous factors

Biochimica et Biophysica Acta (BBA) - Bioenergetics ◽

10.1016/0005-2728(87)90079-x ◽

1987 ◽

Vol 891 (1) ◽

pp. 22-27 ◽

Cited By ~ 14

Author(s):

Werner Schmidt ◽

Horst Senger

Keyword(s):

Scenedesmus Obliquus ◽

Delayed Luminescence

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Impact of Sustainable Urban Drainage Systems (SUDS) on Vadose Zone Water

10.5194/egusphere-egu2020-10953 ◽

2020 ◽

Author(s):

Arne Reck ◽

Eva Paton ◽

Björn Kluge

Keyword(s):

Trace Metal ◽

Vadose Zone ◽

Natural Water ◽

Water Cycle ◽

Stormwater Runoff ◽

Urban Drainage ◽

Soil Layers ◽

Term Operation ◽

Metal Contents

<p>Sustainable Urban Drainage System (SUDS), like bioretention for stormwater runoff infiltration, offer several advantages compared to the traditional centralised sewage drainage. Such approaches maintain the natural water cycle in the urban critical zone and help to mitigate climatic extremes impact on urban areas by retarding, storing and evaporating stormwater runoff. Although SUDS are established since longer time (>25 years for example in Germany) we lack systematic investigations on the hydrological functionality and pollutant retention performance of these systems after long-term operation. We employed laboratory and field experiments coupled with numerical simulations to investigate three long-term operated bioretention systems in Germany with following objectives: (i) a detailed mapping of spatial contamination patterns; (ii) a soil hydrological and -chemical substrate characterisation; (iii) an event-based influent and effluent trace metal concentrations monitoring covering 36 months in total; and (iv) a soil water balance simulation using HYDRUS-1D. Regarding the pollution patterns, we found significantly enhanced trace metal contents in the soil substrate mainly as a function of the drainage area type and kind of inflow regime. Nonetheless, average free metal ion concentrations in the soil seepage water extracted below the upper soil layers (30-45 cm) fall below German trigger values considering the soil-groundwater pathway at all three investigated sites. Compared to influent concentrations, average load reduction of the major pollutants Cu and Zn was 55-95 % within the upper soil layers. With regard to infiltrated runoff volumes, simulated water balances revealed hydraulic load reductions of 10-40 % by evapotranspiration. Our current findings demonstrate no risk of groundwater degradation suggesting bioretention as a powerful tool in terms of maintaining the natural water cycle in the urban vadose zone even after long-term operation. Debatable might be the handling of soil substrates modified by stormwater infiltration showing enhanced trace metal contents and a certain amount of technogenic sediments like tyre wear. On the one hand, a big metal pool is specifically bound meaning it can easily turn into free ions during changing conditions like the application of de-icing agents. On the other hand, these substrates perfectly fulfil pollutant retention and water conductivity requirements as mandatory for an effective stormwater treatment using SUDS approaches.</p>

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Different Effects of Three Types of Water on Developmental Behaviors, Lipid Metabolism and Antioxidant Capacity of Juvenile Zebrafish

10.1101/373381 ◽

2018 ◽

Cited By ~ 1

Author(s):

Cheng Chang ◽

Jiajin Zhu

Keyword(s):

Body Weight ◽

Lipid Metabolism ◽

Antioxidant Capacity ◽

Natural Water ◽

Growth And Development ◽

Tap Water ◽

Adequate Nutrition ◽

Drinking Waters ◽

Healthy Growth

AbstractAdolescence is an important period when people need adequate nutrition for healthy growth and development, whether from food or water. Tap water, bottled water (bottled purified water, and bottled natural water) are now the three most popular drinking waters consumed by adolescents in China. However, the constituents of them differ, which may cause different long-term health effects. In order to determine which type of water is the most beneficial regarding developmental behaviors, lipid metabolism and antioxidant capacity of juvenile zebrafish, 21 dpf (days post-fertilization) zebrafish were given these three waters separately with the same feed until 90 dpf. Results showed that zebrafish in purified water had the lowest survival rate, body weight and body length, while zebrafish in natural water and tap water had similar developmental behaviors; the highest HDL-C level and the lowest TG level were found in natural water, tap water second; and zebrafish in natural water showed the best antioxidant capacity. Thus, the best outcomes were found in natural water, which had suitable pH and proper amount of minerals, tap water also showed good performance, while purified water seemed not suitable for juvenile zebrafish.

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