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A spatial and time-dependent survey of physico-chemical parameters and ecotoxicity in rainwater

A spatial and time-dependent survey of physico-chemical parameters and ecotoxicity in rainwater

Elif Burcu Bahadır1, Sevinç Adiloğlu2, Füsun Ekmekyapar3, Günay Yıldız Töre3, and Süreyya Meriç3*

HIGHLIGHTS

  • Rainwater quality changed by time and spatial locations.
  • Daphnia magna immobilization acute toxicity test was performed.
  • Some rainwater samples resulted in toxic to Daphnia magna.
  • Rainwater quality displayed a varying range of contaminants measured.
  • A significant dependence was found between pH and NH4+, and between toxicity and arsenic.

ABSTRACT

Rainwater harvesting has become an alternative water resource where the water scarcity is the major problem. However, the quality of harvested rainwater is related closely to anthropogenic activities, as well as the medium of collection such as roof material and surface activity. This study aimed to survey physico-chemical parameters (Electro-conductivity (EC), Ammonia, TKN and pH) and metals to cause ecotoxicity in rainwater. The samples were collected from different points (in the city center, traffic affected and outer zones of the city), different types (surface contact, non-surface contact and roof), in three locations of Tekirdağ city (Çorlu, Hayrabolu and Tekirdağ city center) and in different times (May to December, 2012). Daphnia magna immobilization acute toxicity test was performed. Rainwater quality displayed a varying range of contaminants measured by means of sample origin, location and collection period. Some of 17 samples exhibited severe toxicity to D. magna (>50% of immobilization). A significant dependence was found between pH and NH4+, among the parameters of EC, Ca and Mg as well as between toxicity and arsenic.

© 2018 Ababil Publishers. All rights reserved.

To cite this article: Bahadır EB, Adiloğlu S, Ekmekyapar F, Töre GY, Meriç S. A spatial and time-dependent survey of physico-chemical parameters and ecotoxicity in rainwater. Journal of Desalination and Water Purification 2018;11:2-8.

To link this article: http://ababilpub.com/download/jdwp11-2/

Every coin has two faces

Every coin has two faces

Lucia Bírošová

Every year we are witnesses of increasing pollution worldwide. Sad to say that majority of pollutants come from anthropogenic activity. Progress in science and technology has brought us many perfect things which prolonged our life and make it more comfortable. Thanks to discovery of antibiotics we can easier overcome many infections which were deadly in past. We have cars, planes and boats so we can travel around the world. Modern technology enables us to speak with our houses (smart buildings) and save money and time. Plastic bottles are easier than those from glass and cannot be broken. We can talk about many other achievements of modern time but we have forgotten about our environment. People are very selfish and did not keep in mind fate and impact on the environment. For example, we can look at the pharmaceuticals and wastewater treatment plants (WWTPs). Antibiotics, antihypertensive, analgesics, antihistamines, hormones and many more help us every day to overwhelm many diseases and pain. Majority of these drugs are not fully degraded in our body and get into wastewater in form of stool or urine. Consequently, they flow into WWTP where they should be degraded. However, the problem is that WWTP technology is more than one-hundred-year-old so it is not able to eliminate the majority of new substances in wastewater…

© 2018 Ababil Publishers. All rights reserved.

To cite this article: Bírošová L. Every coin has two faces. Journal of Desalination and Water Purification 2018;11:1.

To link this article: http://ababilpub.com/download/jdwp11-1/