Plants produce a large variety of natural products. Terpenes seem to be the largest and the
most important group of secondary metabolites in conifer trees. They protect the plant from …

Tropical, temperate, and boreal forests are critical components of the climate system, and
the ecosystem services they provide are essential for our society (Bonan et al., 1992, Bonan …

Atmospheric oxidation is a key phenomenon that connects atmospheric chemistry with
globally challenging environmental issues, such as climate change, stratospheric ozone …

We analyzed size distributions measured continuously at a boreal forest measurement site
at Hyytiälä, Finland between 1996 and 2003. From the eight-year data we identified days …

Aerosols play a key role in the radiation balance of the atmosphere. Here, we present
evidence that the European boreal region is a substantial source of both aerosol mass and …

The possible connections between the carbon balance of ecosystems and aerosol-cloud-
climate interactions play a significant role in climate change studies. Carbon dioxide is a …

As demonstrated in a number of investigations, gaseous sulfuric acid plays a central role in
atmospheric aerosol formation. Using chemical ionization mass spectrometer the gas-phase …

Benzene, toluene, ethylbenzene and xylene (BTEX) form an important group of aromatic
Volatile Organic Compounds (VOCs) because of their role in the tropospheric chemistry and …

It has been suggested that volatile organic compounds (VOCs) are involved in organic
aerosol formation, which in turn affects radiative forcing and climate. The most abundant …

High molecular weight (300–650 Da) naturally charged negative ions have previously been
observed at a boreal forest site in Hyytiälä, Finland. The long-term measurements conducted …