Radiological impact of phosphogypsum surface application in a no-till system in Southern Brazil

The objective of this work was to determine the impact of phosphogypsum application on 226Ra and 228Ra activities in the soil and on their accumulation in soybean grains. A field experiment was carried out in Paraná state, Brazil, on a loamy Typic Hapludox, under no-till system, with increasing phosphogypsum rates: 4, 8, and 12 Mg ha-1. GammA ray spectrometry was carried out using HPGe detectors with 45 and 10% relative efficiencies, for soybean grains and soil, respectively. No increment of 226Ra and 228Ra activities was observed due to the increase in phosphogypsum rates in the soil, and a small reduction was noticed in the grains. Average values found for 226Ra and 228Ra activities were 37 and 57 Bq kg-1 in the soil and 1.44 and 3.19 Bq kg-1 in soybean grains. The application of phosphogypsum for no-till soybean production is a safe practice regarding the risks of radiation damage to human health

Hans Kejserliga Majestäts Nådiga Försäkran till samtelige Finlands Inbyggare; Gifwen Borgå, den 15/27 Martii 1809 - [Titelsidan]

Åbo 1809, Frenckell

Hans Kejserliga Majestäts Nådiga Kungörelse till samtelige Finlands Inbyggare; Gifwen Borgå den 23 Martii/4 April 1809 - [Titelsidan]

Åbo 1809, Frenckell

Hans Kejserliga Majestäts Nådiga Påbud angående En Allmän Landtdags hållande i Borgå Stad till den 10/22 Martii nästkommande. Gifven St. Petersburgs Slott den 20 Januarii/1 Februarii 1809 - [Titelsidan]

St.Petersburg 1809

Matkailijayhdistyksen Helsingin kiertokatsausten opas 26-28 p:inä maalisk. 1911 = Vägvisare till Turistföreningens rundturer i Helsingfors 26-28 Mars 1911 - [Kansi]

Helsinki : [Suomen matkailijayhdistys] 1911

Berättelse om kejsar Aleksanders färd från Nissilä gästgifveri till staden Kajana - Aleksanteri I tervehtii Henrik Tervosta

Sanktpeterburg 1828 : Paris, Engelmann

Wäg-karta ifrån Stockholm till Petersburg Itinéraire de Stockholm, à Petersbourg. Itinerary from Stockholm to Petersbourg - 1

S.l. 1835, E. Åkerland