Concentrations Collection

SERVICE RESPIRATOR/WWII
Service respirator: used by members of the Civil Air Raid precautions services, who may have strenuous duties to perform in heavy gas concentrations Date: WWII

Parathyroid hormone molecule. Computer model showing the structure of parathyroid hormone (PTH), or parathormone. Atoms are colour-coded (carbon: dark grey, hydrogen: light grey, oxygen: red)

Indian Ocean, chlorophyll concentration C016 / 3722
Indian Ocean, chlorophyll concentration and clouds. Computer graphic of the Indian Ocean on an Earth globe, generated using satellite and mapping data

Indian Ocean, chlorophyll and bathymetry C016 / 3721
Indian Ocean, chlorophyll concentration and bathymetry with clouds. Computer graphic of the Indian Ocean on an Earth globe, generated using satellite and mapping data

Indian Ocean, chlorophyll and bathymetry
Indian Ocean, chlorophyll concentration and bathymetry. Computer graphic of the Indian Ocean on an Earth globe, generated using satellite and mapping data

Carbon dioxide levels, Atlantic, 2003
Atmospheric carbon dioxide levels centred on the Atlantic Ocean, satellite data. Carbon dioxide (CO2) is a greenhouse gas that contributes to global warming

Global methane concentration, 2004
Global methane concentration. Map showing the concentration of methane (CH4) gas in the stratosphere (about 10-50 kilometres in altitude) on 25th July 2004

Parathyroid hormone, molecular model
Parathyroid hormone. Molecular model showing the primary structure (spheres) and secondary structure (coils) of parathyroid hormone (PTH), or parathormone

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During WWII, soldiers donned service respirators to protect against harmful gases. Today, scientists delve into the depths of the Indian Ocean, measuring chlorophyll concentrations C016 / 3722 and C016 / 3721 with advanced technology, revealing vital information about ocean health. Meanwhile, in the Atlantic, carbon dioxide levels from 2003 paint a concerning picture of rising greenhouse gas emissions. Elsewhere, the global methane concentration in 2004 stood at a significant level, a potent greenhouse gas with the potential to accelerate climate change. Back on land, the parathyroid hormone molecule, essential for calcium homeostasis, is intricately modeled to understand its role in human health. These diverse concentrations, from the depths of the sea to the intricacies of the human body, offer valuable insights into our world and its complex systems.