Soheila Rezaitabar

12 Questions 3 Answers 0 Followers

Questions related from Soheila Rezaitabar

Do you know of any review articles that discuss the impact of air pollution on plants, including agricultural crops?

Dear Madam/Sir I need a new complete reference about the effect of air pollution on plants/agricultural plants. I would be very appreciate if you share the reference with me. Thank you for your...

10 February 2024 6,328 2 View

What is the main differences between the ambient air quality stations and portable pm measurement instruments?

We had a comparison between the portable and stationary instruments related to particulate matter measuring. The difference was significant about pm2.5. Does anyone know what is the reason?

28 November 2023 1,563 2 View

What is the difference between "blast furnace", "electric arc furnace", "basic oxygen furnace" and "induction furnace" in steel production process?

I need a comparison of the different steel production methods (blast furnace, electric arc furnace, basic oxygen furnace, and induction furnace) based on the air pollutants emission. On the other...

08 November 2022 2,358 1 View

Is there water quality guidelines for wildlife by WHO, EPA or other valid organization?

I would be very appreciative if you introduce a valid guideline for water quality parameters for wildlife habitats.

08 August 2022 1,532 4 View

How to measure Cd with Pg Instrument Graphite furnace?

Dear Madam/Sir We have a Pg AA with a graphite furnace. I can't see any signal or peak from Cadmium (Cd) standards while measuring with graphite furnace but with flame, the R square is almost...

13 January 2022 1,717 0 View

How to convert relative humidity of stack to absolute humidity?

Hi everyone. As you know to calculate the normal concentration of flue particles in dry condition there is below formula: Cd =Cw ×(100/(100-F)) "F" is absolute humidity. When we sample flue using...

27 December 2021 1,552 2 View

How can measure cd by graphite furnace?

I have a Pg AA 500 instrument. The absorbance of Cd and Pb by flame is excellent but i can't measure them by GF-AA. There is no peak in atomization stage. I have checked many heating programs. In...

12 April 2020 3,036 0 View

How to remove color of this sample?

Dear Madam/Sirs I have a unknown sample to measure NO2-, PO4 3-, F and NH3. The color was not removed by carbon active and filtration. But when we add AlNO3 the sample color sediment. Do you...

16 January 2020 5,764 3 View

Could you please help us about Atomic absorption PG instrument 500?

We have an AA PG 500 with many problems: 1. The acetylene-air flame is not stable and it turn off after some minutes. 2. The acetylene-nitrous oxide flame is not stable and it turn off after some...

20 October 2019 8,132 2 View

How to measure Fluoride concentration in waste water sample of paper factory?

I use Spadans method. Because of sample turbidity and high TSS, even with filtration or dilution, i cant measure the F concentration. Does any one have any suggestion fort his problem? Thank u.

04 August 2018 8,308 6 View

Do you have a list of applications/softwares which can calculate biodiversity indices?

Hi every one. I need a list of applications/soft wares which can calculate the biodiversity indices. I would be very appreciate if you help me.

23 June 2018 7,746 28 View

Does anyone have any information about the mechanism of cyanotoxin production by cyanobacteria?

Does anyone have any information about mechanism of cyanotoxin production by cyanobacteria? Thanks

08 October 2014 6,186 4 View