scholarly journals CHEMICAL COMPOSITION OF RAIN WATER OVER BHUBANESWAR, ORISSA

MAUSAM ◽  
2022 ◽  
Vol 45 (3) ◽  
pp. 255-260
Author(s):  
S. DAS ◽  
B. C. MEHTA ◽  
R. V. SINGH ◽  
S. K. SRIVASTAVA

Mon soon ram water over Bhubaneswar were collected and analysed during 198&. 1989 and 1991for CO}. HeO, . a . 50,.<NO}. Na. K Ca. Me. SiD: . EC and pH. The data shows that the chemical composition ofrain water is sready affected by meteorological cond itions. «r. intens ity, quantity and interva l between successiveshowers and al.so on wind velocity. II was round that with some exceprlon the ini tial showers are eenerally moresa lin e th an the subsequent o nes. the rati os between variou s co nstituents varyquite irregularly,Thesourcesofvariousconstituents have bee n discussed and th e amount of various ptant nutrients though sm all in relation 10 overallrequirem ent s of pla nu brought down by r-ain have been ca lcu lated in kg/hec.  

2000 ◽  
Vol 31 (2) ◽  
pp. 223-238 ◽  
Author(s):  
Z. Saad ◽  
K. Slim ◽  
A. Ghaddar ◽  
M. Nasreddine ◽  
Z. Kattan

2017 ◽  
Vol 10 (2) ◽  
pp. 203 ◽  
Author(s):  
Aderonke Adetutu Okoya ◽  
Bamikole Walter Osungbemiro ◽  
Temi E. Ologunorisa

The study of the chemical composition of rain water was conducted in Ile – Ife and environs, an agrarian, commercial, residential and semi-industrialised center of Osun state Nigeria. This was with a view to assessing the impact of land use activities on rain water composition and the temporal variation of rainwater chemistry. Physico-chemical parameters such as Turbidity, pH, TDS, Conductivity, Oxygen parameters, Alkalinity, Acidity, Hardness and Major ions (Ca2+, Mg2+, K+, Na+, NO3-, SO4-, HCO3-) were determined, predominant ions were identified. Turbidity, pH, Conductivity, TDS, D.O B.O.D, Alkalinity, Acidity Hardness ranged between 2.90 - 42.84 NTU, 5.65 - 7.40, 6.71 – 122.33 µScm-1, 4.10 –73.27 mg/L, 3.60 – 10.60 mg/L, 0.13 – 7.20 mg/L, 0.33 – 22.0 mg/L, 2.00 – 15.00 mg/L, 0.04 – 1.23 CaCO3mg/l respectively. The dominant ions detected in the study were HCO3-, Mg2+, Na+ and Ca2+. Generally, the mean concentration of ions as expressed in milli-equivalent per Litre showed order of dominance as HCO3- > NO3- > SO42- for the anions and Mg2+ > Na+ > Ca2+ > K+ for cations. The study concluded that land use activities had influence on all the chemical composition of rain water in the study area but more on pH, alkalinity, acidity, bicarbonate. Except sulphate and Nitrate, all other parameters recorded high values in dry season.


2014 ◽  
Vol 4 (2) ◽  
pp. 22
Author(s):  
Alif Noor Anna

The information of rain water quality in Indonesia is rarely recorded, where as it is important for the region in which the source of fresh water is unavailable. Rain water composition is mostly ascertained by water vapour and ions which are available in the atmosphere during vapouration. In fact the rain water composition of coast region is sea water like and rain water chemical composition of urban are then become HNO3 and HSO4, while rain water of active vulcanic region eventuality has a high sulphur-wombed so that its quality sulphuric-acid. For the region in which the source of fresh water is unavailable the rain water is previously sterilized. Sterilization is consecutively done by adding salts, killing all bacteria, spores, and filltering.


Author(s):  
Dione Richer Momolli ◽  
Huan Pablo de Souza ◽  
Mauro Valdir Schumacher ◽  
Aline Aparecida Ludvichak ◽  
Claudiney Do Couto Guimarães ◽  
...  

The chemical composition of rainfall is influenced by natural or anthropogenic factors; the amount of nutrients deposited is increased by the amount of rainfall. This work sought to estimate the amount of nutrients deposited by precipitation in the Pampa biome, the seasonal variation of the chemical composition of rain water, and the origin of nutrients found in the water. Precipitation collectors were installed in the open area to measure precipitation volumes biweekly over 2 years, and the samples were chemically analyzed. Concentrations of nutrients in the rain water increased over winter; however, since there was less precipitation, the total deposition was similar to the other seasons. Correlation analysis using the Pearson coefficient showed a negative correlation between rain volume and ion contents, indicating a dilution effect. The total amount of nutrients from precipitation during the study was 72.7 kg ha-1, representing an average of 36.3 kg ha-1 year-1. The Ca2+ and K+ ions are predominantly of litholical origin, whereas the SO42- and NO3- ions were of anthropogenic origin. The balance between the sum of cations and the sum of anions was shown to be unitary, indicating excellent data validation. The input of these nutrients occurs gradually, avoiding excessive losses, increasing the stock in the soil.


2021 ◽  
Vol 2064 (1) ◽  
pp. 012026
Author(s):  
B A Kozlov ◽  
D S Makhanko

Abstract This article presents the results of “electrical wind” investigations in CO2–laser mixtures at superatmospheric (1–12 atm) pressures. It is established that for a fixed value of the unipolar corona discharge current, the gas flow velocity does not depend on the pressure, but is determined by the chemical composition of the working mixture. The maximum values of the “electrical wind” velocity are achieved in carbon dioxide and molecular nitrogen and their values are 3.2 and 2.9 ms−1. In typical laser mixtures CO2:N2:He = 1:1:1 – 1:1:3 the velocity of the “electrical wind ” are in the range from 2.5 to 1.5 ms−.


Tellus ◽  
1968 ◽  
Vol 20 (2) ◽  
pp. 284-292 ◽  
Author(s):  
L. T. KHEMANI ◽  
BH. V. RAMANA MURTY

2010 ◽  
Vol 66 (3) ◽  
pp. 101-116 ◽  
Author(s):  
Jetta Satyanarayana ◽  
Loka Arun Kumar Reddy ◽  
Monika Jain Kulshrestha ◽  
R Nageswara Rao ◽  
Umesh Chandra Kulshrestha

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