Danial Bahroz Tahir

16 Questions 15 Answers 0 Followers

Questions related from Danial Bahroz Tahir

Are LOD numbers allowed to participate/be included in Diagnostic Ratios for finding Polycyclic Aromatic Hydrocarbons Sources like for Water Samples?

Hello, I have been recently encountering an issue and I am in desperate need for authentic sources or at least trustable information. If it happens that water samples of various sites had high...

03 August 2025 6,382 4 View

Can someone help in regards the way of DNA Extraction for Moina and/or Daphnia spp.?

Hello, I wanted to find more papers about some molecular methods for extraction of DNA for the following genera: Moina and Daphnia sp., which are: 1. How many individuals should I have for each...

29 July 2025 9,093 0 View

What primer are specific for the the genus Daphnia for identification? Cytochrome c Oxidase I is commonly used but are there any better primers?

Hello, As far it is known that cytochrome c oxidase I is commonly used for invertebrates but some folks I know asked if there are any alternatives for the genus Daphnia, so I thought to get help...

18 July 2025 3,924 2 View

What statistical analysis can be performed for water samples collected seasonally in the below case?

Hello, Assuming a scenario such as: if one collected water samples from 9 different sites in a time series of four months (within two different seasons were each season had two months as a...

13 May 2025 6,455 9 View

Purchasing Microplastics in Iraq?

Hello, Any idea or info where to purchase microplastics of any type (PET, PE etc.) in Iraq? Or at least companies that sells them online with shipping them over for a cheap price?

08 April 2025 175 0 View

Is it still suitable to test wastewater, drinking water and lake water samples stored in the opening that have gone over a month?

Hello, I stored some of samples in the opening (under an outside staircase) covered in black bags. So would they still be suitable to test for alkalinity, hardness, and acidity?

18 November 2024 3,932 4 View

Is it allowed to compare a number measured in ppm to a standard that has its items set as mg/L?

Hello, Assuming I have a list of recorded numbers all measured in ppb, ppm and ppt and want to compare them to a drinking water quality standard which has all its items measured in mg/L. So would...

16 November 2024 6,134 5 View

Any available PDF/s or tables from WHO quality standards for wastewater and surface water?

Hello, I am in search of available PDF/s or the likes that has water quality standards for surface and wastewater from the World Health Organization (WHO). You do find a lot available for...

09 November 2024 2,705 2 View

Is there any Water Quality Index (WQI) especially for surface and effluent waters separately?

Hello, I am in search of a water quality index for toxic chemicals/compounds in wastewater and lake water. If there are any tables, PDFs etc. from World Health Organization (WHO) be kind to send...

08 November 2024 7,797 1 View

Any available PDF/s from WHO or EPA that has the numerical standards for water quality for drinking, effluent and river waters?

I have recently found too many PDFs that do describe a lot of regulations or procedures for water quality but don't contain much of what I need. So I am seriously in search of chemical...

07 November 2024 9,511 0 View

Is MCL enough to indicate water quality for freshwater, drinking or other water types?

Hello, On EPA, you see various abbreviations such MCL, MCLG, RSL, UPUS, CMC and CCC etc. In short, is it sufficient to use MCL (maximum contaminat level) as a standard/criterion number for all...

05 November 2024 5,178 4 View

Where to get PDFs from a popular organization that has surface water standards (including lethal and normal ranges) for chemicals and pathogens?

I find on the internet various PDFs regarding certain drinking water standards that are not exactly what I want. I am in need of a table from maybe WHO or EPA that have normal ranges of various...

02 November 2024 7,329 3 View

How to get article and literature review templates (for publishing) from websites like Elsevier?

Hello, I want to know how to get the templates from the Elsevier official website (their last updated if exists)? I would like to know the steps if possible.

27 July 2024 3,539 2 View

Commercial Biotransformation with Microbes?

Hello, I am in search for papers that: 1) explain with graphs the biotransformation of diosgenin to cortisone. 2) explain with graphs the biotransformation of soybean oil to progesterone. If...

30 April 2024 1,366 3 View

How to achieve a review paper when it claims all authors have passed away?

Name of literature review: Plastic and Human Health: A Micro Issue? May 2017 Environmental Science and Technology 51(12) DOI: 10.1021/acs.est.7b00423

22 April 2024 1,623 3 View

Needed Information about ISO Standards for Drinking, Surface and Wastewater.

Hello, As far as I know ISO standards need to be paid for to be available for usage. Does anyone know of any free versions? Or at least if paid for, which of those ISO guidelines/standards would...

01 January 1970 2,751 0 View