Nafees Mohammad

30 Questions 225 Answers 0 Followers

Questions related from Nafees Mohammad

Do you think we have to change the methods and techniques for monitoring heavy metals and find out the actual hazard?

Heavy metals are everywhere, in one form or the other. All salts of a heavy metal are either not soluble or not harmful. The present trend in heavy metals research has revealed that every part of...

07 July 2023 5,274 4 View

What are the requirements in terms of equipments/Instruments for solid waste Laboratory?

If we want to established laboratory for complete solid waste analysis (Physical and chemical parameters), what type of equipments / instruments will be required? 1. Physical = individual...

30 March 2021 3,670 2 View

After mutation, incubation period of the SARS-CoV-2 will also change? Similarly, vaccine developed for one strain will be effective other strains?

Mutation is one of the characteristics of SARS-CoV-2. Recently, scientists have identified a new strain of the coronavirus that has become dominant worldwide and appears to be more contagious than...

05 May 2020 8,319 6 View

How to calculate/ estimate minimum required flow of a river for maintaining ecological status during low-flow and high-flow seasons?

Generally, to maintain ecological status, five factors are considered for a river ecosystem: 1. flowing water that is mostly unidirectional 2. a state of continuous physical change 3. many...

12 September 2018 4,670 6 View

Which juice is good for health? Fresh fruit juice, canned juice and juice prepared from Freezed fruits? We should avoid canned juices?

Canned juices of various fruits are available in the market. It is always a preferred to have juice prepared from fresh fruits. But a particular fruit is not available in every season or it may...

05 June 2018 5,899 22 View

How we will define indigenous people? What is the role of indigenous people in resource conservation?

Indigenous people are part of a particular ecosystem. They have unique information about their locality. This important segment is always ignored. Indigenous peoples are among the most...

03 June 2018 5,993 14 View

Dissolved solids in water measures gravimetrically are different from that measures with electrical conductivity meters. Which one is reliable?

Ground water, surface water and wastewater always contain dissolved solids. Most of researchers used electrical conductivity (EC) meter for measuring dissolved solids. But the results are always...

16 May 2018 858 20 View

Can we replace silver sulfate with silver nitrate as alternative catalyst in Chemical Oxygen Demand (COD) test?

Chemical Oxygen Demand is a common problem water test. Silver sulfate is used as a catalyst. Sometimes, if AgSO4 is not available, we can use AgNO3 as a catalyst or not.

25 April 2018 3,236 10 View

Which law/doctrine is good/suitable for trans boundary water (river) ecology?

There are different international law, doctrines for Trans Boundary Water Resources, such as: 1. Absolute territorial sovereignty theory 2. Absolute territorial integrity theory 3. Theory of...

19 April 2018 3,215 4 View

Soil amended with biochar is the ultimate/temporary solution to avoid/minimize heavy metals uptake by plants?

Various researchers are suggesting biochar treatment for soil, contaminated with heavy metals. Biochar got the ability to adsorb heavy metals and make it unavailable for plant. But for how long...

28 February 2018 9,783 8 View

What set of criteria may be selected for setting water quality guideline standard for a particular water pollutant?

We have different water quality guideline standards for different purposes. Different countries have set different standards. How we can identify a guide lines standard for a particular pollutant...

09 February 2018 9,134 14 View

What is the required duration for mutation in a virus? Mutation in virus always make it more dangerous or it can make a virus less invasive and safe?

https://newsgranularity.com/2020/05/11/covid-19-vs-spanish-flu-a-societal-comparison/ Overall, the Spanish Flu is likely to be deadliest epidemic in the history of world. Estimates are that 1-3%...

01 January 1970 5,256 5 View

Biochar amended soil adsorb heavy metals including micronutrients also that may have negative effects on plants/crops?

Many researchers recommending "Biochar"for soil contaminated with heavy metals. Some heavy metals are micronutrients such as Fe, Cu, Zn, Mo etc. If biochar adsorb these micronutrients and make...

01 January 1970 9,065 12 View

What are the medicinal uses of "Amaranthus viridis Linn"? What alkaloids are present in this plant?

Amaranthus viridis Linn is a common summer weed found every where. It has got medicinal properties. There is any specific research that may have extracted some compounds (alkaloids) of medicinal...

01 January 1970 9,927 6 View

Is it legal to compile your published papers, published in open accessed journals in the form of a book?

If someone publish research papers in open accessed journals. Collect and compile papers in sequence on the same theme and publish that in the form of a book. This will come under self plagiarism...

01 January 1970 2,445 18 View

How to discourage incompetency through eligibility criteria?

For a job, especially at universities we designed a set of criteria. In this the most important one is about number of research papers (publications), impact factor and citation. Generally, a...

01 January 1970 5,210 1 View

Atmospheric CO2 increase ocean acidity or dissolved contents?

It is true that CO2 is soluble in water. As soon it come in contact with water molecules, it produce carbonic acid. CO2 + H2O = H2CO3 Carbonic acid work on slightly or non soluble calcium and...

01 January 1970 4,143 7 View

The climate change has any positive impact on any region of the globe in terms of food production?

Temperature has got a detrimental role in fruit & vegetable varieties. Hot regions of the globe are rich in food varieties and production. Most of the published research papers are talking...

01 January 1970 5,783 28 View

Why off-Season Fruits and Vegetables, are less Beneficial? Some time it is considered harmful to healt?

Off-seasons vegetable offers the higher prices to the farmers. Instead of high price, people preferred off-season fruits and vegetables. It is a general perception that such fruits and vegetables...

01 January 1970 8,169 15 View

How to dispose of chemically treated mangoes in a safe manner?

The use of Ethylene gas (C2H4) is considered suitable for ripening of fruit. Due to low price, majority of farmers in Pakistan are using Calcium Carbide as alternative. When Calcium Carbide reacts...

01 January 1970 1,320 3 View

What is the best way to calibrate dissolve oxygen (DO) meter?

Dissolve Oxygen (DO) meter is frequently used in river study. Calibration in the laboratory is not a problem, but it is difficult to calibrate DO meter in the field, especially for streams with...

01 January 1970 3,070 6 View

Looking into discussion on climate change and global warming accross the globe, is there any reason for hope to reverse the charge?

Scientists have been warning since the 1980s that strong policies were needed to limit emissions. Various countries and international community are with efforts to cope with the situation. But I...

01 January 1970 8,414 23 View

Net zero emission is a slogan or it is a practical solution toward climate change mitigation?

Net zero refers to a state in which the greenhouse gases going into the atmosphere are balanced by removal out of the atmosphere. A growing number of countries, cities and companies are aiming for...

01 January 1970 5,119 12 View

Do you think that Electric Car will solve climate change associated problems?

Electric cars have been introduced world wide with the idea that there will be some decrease in carbon footprints along with decrease in air pollution. But we have to charge an electric car on...

01 January 1970 406 19 View

Is terrorism a new form of war?

There is terrorist attack in one country. Another country start war-on terror or counter terrorism. In this way, partially or fully capture a handsome piece of land. In this way control all...

01 January 1970 6,399 9 View

Who will pay the operational cost of a municipal wastewater treatment plant?

Industries are earning, and it is easy to justify recovery of operational cost for an industrial waste water treatment plant. Municipal wastewater water treatment receive a bulk of wastewater from...

01 January 1970 5,674 13 View

What is zero waste? Is it practical or it is simply a concept or slogan? How it is different from cleaner production?

When talking about waste reduction, various terms came under discuss. Such as: Low waste no waste Cleaner production Zero waste These terms are discussed under the concept of preventive...

01 January 1970 226 30 View

Sometimes we recommend treatment unnecessarily? Do you agree?

We measure heavy metals in each and every thing and compared it with standard Guidelines. If the total concentration in water, soil or crop is high, straight away we declared that as hazardous and...

01 January 1970 4,571 8 View

Is it true that pesticides are accumulated in crop plants/Fruit/vegetables through absorption/adsorption, remained there in it's original form?

Most of pesticides are organic and not water soluble. If it get absorb, there is a lot of chemical changes too. In such circumstances how it get accoumolated and contaminate food cycle? It is true...

01 January 1970 7,331 50 View

What are the requirements of Eco-tourism?

If we want to study an area of tourist interest for bringing it under the concept of Eco-tourism, what parameters should be selected? Or what aspect we have to study and analyse? What changes are...

01 January 1970 1,611 20 View